1Allowing access, passage, or a view through an empty space; not closed or blocked.

这条路用扫雪车来保持畅通无阻。

1. 1.1 (of a container) not fastened or sealed.
   the case burst open and its contents flew all over the place

   箱子撑了开来，里面的东西撒得满地都是。

   Example sentencesExamples

   • First of all, I used mostly milk chocolate chips because I had an open bag to get rid of.
   • At the funeral they were filing past the open coffin to pay their respects.
   • An open packet of painkillers and a bladed instrument were found next to the body.
   • Letting out a moan, he grabs at the open bottle of pills, some of which spill onto the carpet.
   • Some reports claim that the hatches to the cargo were broken open and the casks of alcohol broached.
   • Then he reached for an open bottle of red wine, took a swig from the neck.
   • Her gym bag was open and her makeup and shampoo bottles were scattered on my bed.
   • At last, we all got comfortable in the living room, each of us with an open bottle of lager.
   • All of the overhead lockers flew open and the red cover on the handle of the emergency exit sprang across the cabin.
   • There were a lot of open bottles left in the office after the Carnival celebration.
   • An airport screener smelled alcohol and found an open container of alcohol on the pilot.
   • She stepped closer to the bed where the open suitcase lay, picking up a pearl necklace.
   • Her backpack was open, and I saw a pack of tarot cards, along with an Ouija board in it.
   • She appeared in front of Kate in a moment, setting an open bottle of beer in front of her.
   • She found my open backpack in the closet and carefully went through all its pockets and compartments.
   • His duffle bag was open in front of him on the bed, a shoelace dangling over the zipper.
   • The cleaners picked up an open packet of Jelly Babies from the theatre.
   • He reached across the table and plucked a cigarette from the open packet.
   • Always reseal open bags to prevent the mix drying out and store it in a cool, dark environment.
   • One of the men was holding a long open box.
2. 1.2 (of a garment or its fastenings) not done up.
   （衣服或扣子）敞开着的
   his tie was knotted below the open collar of his shirt

   他的领带节打在敞开的衬衫领口下面。

   Example sentencesExamples

   • She was wearing just an open dressing-gown, her lacy cream nightgown showing beneath.
   • He was wearing a pinstriped suit and an open shirt, and he had a ponytail.
   • He was dressed simply, in black breeches and a white shirt that was open at the neck.
   • He wore light brown leather breeches and an open leather jacket.
   • His shirt is open showing his slightly muscular build.
   • But the eyewitness alerted police and they caught him with his trousers half open.
   • I had my lightweight coat on, and that was open, so the warmth penetrated so deep I felt I was breathing it.
   • After some hours, he said, they were given gowns that were open at the back.
   • The man was smoking a cigarette, and his shirt was open at the neck.
   • She tried her best to avert her eyes from the chest that she could plainly see through the open shirt.
   • Olivia notes the direction of his gaze, and realizes her robe has fallen open again.
   • We met on his enormous yacht, and he wore a captain's cap and an open shirt with epaulets.
   • The maître d' wore a jacket and an open collar shirt.
   • I find it sexy when a man wears an open collar shirt that reveals the top part of his chest.
   • The shirt is open three or so buttons down revealing a lengthy vertical surgical scar.
   • He had an open jacket over a black t-shirt.
   • Her button up shirt was open at the top.
   • He was wearing a dark maroon shirt with an open dark blue jacket over it.
   • He had also taken off his tie, and the few topmost buttons of his shirt were open.

   Synonyms

   unfastened, not done up, undone, unbuttoned, unzipped, loose

   unbuckled, untied, unlaced
3. 1.3 (of the mouth or eyes) with lips or lids parted.
   （嘴巴）张开着的；（眼睛）睁着的
   his eyes were open but he could see nothing

   他眼睁着却什么也看不见。

   as complement the boy's mouth dropped open in shock

   男孩惊恐得张大了嘴。

   Example sentencesExamples

   • Her eyes were open but she was quaking now with a lost look on her face.
   • Her glazed eyes were still open, unblinking, staring fixedly at nothing in particular.
   • ‘She's drunk,’ Matt realized suddenly, his mouth hanging open in disbelief.
   • Asked why he was robbing the house, one man wordlessly pointed to his open mouth to indicate he was hungry.
   • I bent down and kissed his cheek, which made his eyes flutter open.
4. 1.4 (of a fabric) loosely knitted or woven.
   （纺织品）松散的
   Example sentencesExamples

   • It is a poly cotton blend with an open knit.
   • Look for a natural fabric with a loose, open weave such as burlap or some types of cotton and linen.
   • Fabrics of these fibers often burn easily because of an open fabric weave.
   • It's usually done with a tack cloth which is an open weave fabric treated with a wax.
5. 1.5 (of the bowels) not constipated.
   （肠）通畅的
   Example sentencesExamples

   • He has a good appetite, and his bowels are open.
   • The bowels were open, but the stools consisted only of green and black slime.
   • The bowels were not open, and in the evening she had more pain.
   • The nursing record indicates that her bowels were open.

2attributive Exposed to the air or to view; not covered.

壁炉里燃烧着明火。

他乘着敝舱船横渡了大洋。

1. 2.1 (of land) not covered with buildings or trees.
   空旷的；开阔的
   the plans allow increasing numbers of new houses in open countryside

   这些计划会使空旷的乡村里建起越来越多的新房子。

   Example sentencesExamples

   • She was fascinated by the country's wide open spaces and vast grassy plains.
   • Because many larks nest in open desert areas, chicks are often exposed to sun and heat.
   • The diversity of its landscape is unique, and includes woodland, open heathland and coastal land.
   • If you crave wide open spaces and big skies, then a place in the country would suit.
   • There are wide open spaces for children, it is safe for them, and we are a crime-free area.
   • There is a clause in the planning law against building development on open land.
   • Winter in particular can provide some dramatic effects across the wide open spaces.
   • It was our first sight of wide open space, with nothing but mountains and huge gorges on the horizon.
   • But the parched ground and warm and sunny temperatures meant a flood of calls to attend fires on open ground.
   • The animals enjoy wide open spaces, eat natural foods and also enjoy some of the cleanest air in the world.
   • The riverside, its wildlife, its views, its open spaces and historic features are close to all our hearts.
   • The scenery is flat and open, lacking in trees and hills but with sweeping vistas across stunning landscapes.
   • Country life benefits from wide open spaces where there is less traffic and room for country walks.
   • Just north of Gardez is a wide, open plain studded with small villages.
   • They were amazed at the wide open spaces and how green everything was, but less impressed with the distance to the shops.
   • The wide, open plains of Poland were ideally suited to the rapid movement of tanks central to a blitzkrieg attack.
   • In the heart of Lanarkshire, just nine miles from the centre of Glasgow, lies a vast expanse of open land.
   • Their adventure has seen them scale high peaks, sail across oceans and cycle across open wilderness and deserts.
   • Springbok shelter beneath trees and a lone hyena scurries across the open plain.
   • They agreed the mast was in the wrong place and would dominate the landscape in an area of open countryside.

   Synonyms

   unenclosed, rolling, sweeping, extensive, wide, wide open, broad, unfenced, exposed, unsheltered

   spacious, airy, uncrowded, uncluttered

   undeveloped, unbuilt-up
2. 2.2as complement Damaged by a deep cut in the surface.
   表面被深深切开的
   he had his arm slashed open

   他的手臂被划开了一条大口子。

   Example sentencesExamples

   • The animals have been known to make a nuisance of themselves by ripping open rubbish bags after smelling food.
   • Rubbish bags in and around the Kennet area have recently been found ripped open.
   • They raided her apartment, slashed open her suitcase and stole her mobile phone.
   • She fell and sliced open her shin.
   • Their stomachs are ripped out, their chests crushed, their throats ripped open.
   • They also contain rotting rubbish smells and stop the mess caused by cats ripping open bin liners.
   • Blood had splattered onto every wall; Williamson's throat had been slashed open.
3. 2.3open to Likely to suffer from or be affected by; vulnerable or subject to.
   易受影响的；易受攻击的
   the system is open to abuse

   这套系统很容易被滥用。

   Example sentencesExamples

   • How can it be made easier to do business here, without leaving the system open to even more abuse?
   • That could leave the council open to fresh criticism from Government Ministers.
   • Because of the delay, the election results in the areas affected could now be open to legal challenge.
   • His general manner and the way he conducts himself does leave him open to criticism.
   • Credit unions are more open to serious bad debt problems than other financial institutions.
   • You'd have to give him credit for going out and playing because he was open to all kinds of criticism.
   • Indeed as it stands, the postal voting system leaves itself open to fraud.
   • His suspension leaves him open to possible victimisation by a brigade that is already trying to impose cuts.
   • There is no evidence postal ballots are more open to fraud than the current system.
   • As many people could not read or write, the system was open to abuse and corruption.
   • Laws that are open to such obvious abuse are bad laws, however good the intentions behind them.
   • She has now withdrawn this claim, leaving her open to possible prosecution for perjury.
   • Senior electoral officers in the city admit the system could be open to abuse.
   • The scheme remains entirely voluntary and open to abuse.
   • It would leave him wide open to the criticism that he has become a liability to the party.
   • He accepts he used terms in the article that laid him open to criticism.
   • The disease attacks bark, leaving it open to infection, and makes brittle branches prone to fall off.
   • This rule needs to be amended as it is currently open to abuse by disgruntled minority groups.
   • The unarticulated aims of the movement are, surely, what leaves it open to criticism.
   • The case left the Scottish justice system open to claims its fingerprint evidence was unsafe.

   Synonyms

   susceptible to, liable to, prone to, vulnerable to, predisposed to, disposed to, apt to suffer from, likely to suffer from, easily affected by, in danger of, at risk of, open to, wide open to
4. 2.4 (of a goalmouth or other object of attack in a game) unprotected by defenders.
   （球门或比赛中其他攻击的对象）无严密防守的；空虚的；易受攻击的
   Example sentencesExamples

   • Even when offered an open goal, they are both more likely to miss than score.
   • He seizes on the loose ball and faces an open goal, 16 yards out.
   • The big striker saw the goalkeeper off his line and the open goal.
   • With an open goalmouth in front of him, he put the ball over the cross bar.
   • He lobs the ball over the keeper and watches it bounce towards the open goal.
   • There then followed a period of end to end play when both sides missed open goals but it was City who had the edge.
   • He sent the ball wide of the virtually open goal.
   • The keeper came racing out of his area, but Giggs took the ball round him to leave sight of an open goal.
5. 2.5 (of a town or city) officially declared to be undefended, and so immune under international law from bombardment.
   （城镇或城市）被正式宣布不设防的（所以受国际法保护免受攻击）
   Example sentencesExamples

   • Picasso's masterpiece articulates the horror and outrage felt by all civilized people at the wanton bombing of an open city.
   • The Belgian army retreated to the town of Antwerp, leaving Brussels an open city.
   • However the Soviet Union could not carry out show trials in Berlin, which was an open city.
   • On 13 June Paris was declared an open city, as the French government fled to Bordeaux.
   • He proceeded to declare Manila an open city.

3With the outer edges or sides drawn away from each other; unfolded or spread out.

树上有花苞和一些绽开的花。

1. 3.1 (of a book or file) with the covers parted allowing it to be read.
   （书，文档）摊开的
   she was copying verses from an open Bible

   她正从一本摊开的《圣经》上抄写诗句。

   Example sentencesExamples

   • Its a paperback book that doesn't easily sit open on a table where it is likely best used.
   • He was staring down at the diary on the floor, which had fallen open when it had landed.
   • He sat hunched forward on the chair, fully focused on the book which lay open on his lap.
   • The book was open in the middle, and it was ancient and smelled of dust.
   • He pulled a heavy, leather bound book off from a high shelf, and cracked it open gently.
   • There were books lying open at pages that had seemed relevant.
   • He gave me a quick nod of his head then carried on reading out loud from the textbook he had open in front of him.
   • Books are open on every surface, and there are many pages of notebooks strewn around.
   • She sat at her desk with her open physics book but could not make sense of a word she was reading.
   • She reached over and grabbed the file from the ornate hotel desk and pulled it open.
   • Next to the lute is an open hymn book, identifiable as the work of the great religious reformer Martin Luther.
   • Erin was poring over a huge book that had been open under the side table under a dim red desk lamp.
   • Beside it is another copy of the same book, open at Canaletto's view of the Grand Canal of 1746.
   • She laid the open atlas down on the table and began to dig through kitchen drawers.
   • He stooped to pick up a book from where it lay open and spine-up on the floor and examined the cover.
   • He finally faced her, and smiled as he caught sight of the open record book.
   • Her biology book was open in her lap and she was staring at me with an annoyed expression on her face.
   • Leaning on a stone parapet overlooking the Seine, a young man loses himself in a book held open in front of him.
   • She quickly scanned the pages of the math book that was open and ready in front of her.
   • Would you like to be caught reading a trashy novel that falls open at the rude bits?
2. 3.2 (of a hand) not clenched into a fist.
   （手）张开的
   Example sentencesExamples

   • Place your open hand firmly on your chest and rub backwards and forwards then around and around in slow circles.
   • He glared down at her open palm laying across his chest, and glared back up into her eyes.
   • She leaned her chin in her open palm.
   • So she lifted one hand away from the other, and there the grasshopper sat on her open palm.
   • He then placed his open hand on the girl's head and began ruffling her hair as if she was his pet.
   • He sat on the grass and lay down, positioning his hands so that his head was resting on his open palms.
   • Steven slammed his open hand down on the wall beside Darren's head, causing Darren to cringe.
   • Pulling something out of his pocket, he thrust it into my open hands before running away, out of sight.
   • Jack rummaged in his pocket, produced a fifty pence piece and proffered it in his open palm.
   • I scratch and hit with open palms at the mosquitoes.
   • The girl raises her hands in front of her face with open palms, fingers spread wide.
   • I propped my elbow on the side of the boat, laid my head in the palm of my open hand, and shut my eyes.
   • If his palms are open, carefully bring them together to make his first clapping sounds.
   • With your hand held loosely open, press the fleshy mound with the index finger of your other hand.
   • She placed the golden bracelet in her open palm.
   • Her leg hung over the arm rest of the couch, her head propped up lazily on an open palm.
   • The log books show that in those days impertinence was punished by one or two cuts with the cane - or a slap with an open hand.
   • He shuts off the motor and then slams an open hand on the dashboard.
   • She took his open hand and looked him in the eye - something she found difficult to do with most people.
   • She quickly moved her foot and replaced it with an open hand to help him to his feet.

4predicative (of a business, place of entertainment, etc.) admitting customers or visitors; available for business.

商店一直营业到晚上九点。

1. 4.1 (of a bank account) available for transactions.
   （银行账户）已开通的
   I withdrew all my money except the minimum required to keep the account open

   Example sentencesExamples

   • I called to tell them that my old checking account was no longer open.
   • Other card issuers ask you to provide this information online or by telephone after your account is open.
   • Many expats want to keep their UK bank accounts open while they are abroad.
   • The Co-op was able to check back to 1981, and found nothing to show the account was open then.
   • What are the fees to keep the account open and to do transactions?
2. 4.2 (of a telephone line) ready to take calls.
   （电话）开通的
   our free advice line is open from 8.30 to 17.30

   我们免费咨询热线的开放时间是早上8点半到下午5点半。

   Example sentencesExamples

   • British Gas said its telephone helpline was open 24 hours a day, every day of the year.
   • Phone lines will be open for viewers to vote for who they believe has put in the best performance.
   • So give no one the number to it, for the line needs to be open in case I need to contact you at anytime.
   • The phone lines are open and anyone wanting to leave song requests or discuss local issues will be contacted once it hits the air waves.
   • Telephone lines will be open from noon on Christmas Eve until midnight on Boxing Day.
   • Lines are open from 7.30 am to midnight and calls are charged at national rate.
   • Callers key in a security code and confirm their details, and the line is open round-the-clock.
   • Lines are open from midnight tonight and will close on Thursday, September 2 at noon.
   • With the phone lines open until midnight on May 20, there's still all to play for.
   • The lines are open 24 hours a day and the calls won't show up on your phone bill.

5Freely available or accessible; unrestricted.

这项服务对大学里所有的学生开放。

1. 5.1 (of an offer or opportunity) still available.
   the offer is open while stocks last

   只要有货，出价就可供考虑。

   we need to consider what options are left open

   我们需要考虑还有哪些可供选择的可能。

   Example sentencesExamples

   • This offer is open for acceptance for a period of thirty days from the above date.
   • It may be difficult to find an open time slot to make appointments at these busy times.
   • The offer remained open until one minute after the commencement of the trial.
   • Those who want to pamper themselves can head to the spa as the offer is open only till October 31.
   • We are just keeping all our options open at the moment.
   • We doubled back to the hotel to see if the earlier dinner offer was still open.
   • He came back to Sofia and bashfully inquired if the offer was still open.
   • In return for this I have the full support of the organisation in finding a new job, and I have an open offer of a job here if ever I want it.
   • When doctors practising under this new model start work each morning, about half of their appointment slots are open.
   • He applied to many schools and my mom read papers from different states to see what jobs were open.
   • The grant offers remain open until the end of February next year.
   • The judge granted him bail, but warned him not to read anything into that as all sentencing options were open.
   • On the other hand, it wants to avoid a broader public discussion and keep open all its options.
2. 5.2 With no restrictions on those allowed to participate.
   对参加者不受限制的
   open discussion meetings

   each horse had won two open races

   每匹马都赢得过两次公开赛的冠军。

   Example sentencesExamples

   • This needs to be discussed in an open forum and both sides have to put forward their own arguments.
   • Anyone was welcome for an open discussion on any aspect of religion, philosophy, law and life.
   • Meanwhile, the open division final gets under way, sand spraying under nimble feet.
   • On the open racing scene, the club organised a number of successful races throughout the year.
   • The competition is open to non-members of Cumbria Tourist Board as well as members.
   • The talk is followed by an open discussion, and anyone interested is welcome to attend.
   • The Diana Group is staging a monthly open golf tournament exclusively for senior and lady golfers.
   • This is an open competition and we are looking forward to many entries from the public.
   • Detailed proposals for a bridge over the River Wharfe were unveiled to the general public at an open forum meeting in Burley.
   • This is an open meeting and all parents and teachers are invited to attend.
   • Overall a thrilling final for the first open tennis tournament at the Royal Garden Spa and Fitness.
   • The team also won in three other weight classes in open competitions there.
   • Jonathan Fullam was also a winner when taking the gold medal for shot putt at the open sports in St Abbans.
   • She is so reliable and it is feasible to expect her to make her presence felt in open races such as the King George and Arc.
   • This is an open board meeting, and we encourage division members to come and mingle.
   • This will be the first time that two international open squash events will take place at the same time and in the same club.
   • The council had previously had open meetings at which people could voice their opinions.
   • Each workshop will be followed by refreshments and an open discussion forum.
   • This is the girl with the boring poetry who wanted to read at an open mic night.
   • Not only did he sweep the junior event but the unassuming youngster also won the open competition.
   • Designed by sculptor John Mills, the design won an open competition judged by experts.
   • All members of the public are welcome to attend an open meeting afterwards.
   • Please keep your thoughts flowing into the Gazette and we'll have an open forum for discussion over the coming weeks.
   • Our discussions with councillors and from open meetings have prompted talking points.
   • The event this year will be open for all free flyers, that is hang glider and paraglider pilots.
   • He promised to come back with a vengeance in the upcoming open competitions in Barbados and Jamaica.
   • Following the speakers, the floor will be open for questions and discussion.
   • The decision was reached to arrange an open meeting in the village.
   • This decision was made by Leeds North West Homes at the open board meeting on Monday, April 25.
   • Throughout the day there will be panel discussions and an open forum to round off the day's proceedings.
   • Drew was delighted with, not only his first ever cross win, but his first ever open race win, too.
   • A spokesman for the company said it is looking to hold an open public meeting as soon as possible.
   • The open meeting had not been intended to hinder the process of coming to an agreement.
   • He said the new teams would work closely with the local community and hold open meetings each month.
   • In parallel, an open public competition for project ideas was launched and this was used to pick our five launch projects.
   • They were preparing a report on traffic in Skipton and held an open session in Skipton Town Hall.

   Synonyms

   public, general, unrestricted, non-exclusive, accessible to everyone, non-restrictive
3. 5.3 (of a victor) having won an open competition.
   （胜利者）赢得公开赛的
   an Open champion

   Example sentencesExamples

   • Sporting history is littered with unlikely winners but the 750 to 1 Open victor must have a legitimate claim to having produced the biggest one of all.
   • She is a former world number three tennis player, French Open champion and Wimbledon semi-finalist.
   • The current Australian Open champion in his weight division was disappointed with his Bronze medal.
   • The 2000 U.S. Open champ demolished every women's record imaginable.
   • The 12-times World Champion and 2003 UK Open winner, finished second in the Order of Merit.
4. 5.4 (of a ticket) not restricted as to day of travel.
   （票子）未注明旅行日期的
   I have an open ticket, so I can travel any day I like

   Example sentencesExamples

   • I had an open ticket to return to Thailand.
   • An open ticket gives you complete flexibility – travel on any train, at any time of the day!
   • The business saver ticket will remain a competitive option, which offered many advantages on a standard open ticket.
   • It was always just an open ticket, entitling you to travel certain routes.
   • You can't buy an open ticket online.
5. 5.5British (of a cheque) not crossed.
   〈英〉（支票）未划平行线的，未签注的
   Example sentencesExamples

   • Moreover, the holder may decide to add a crossing to an open cheque, which is then treated as being crossed.
   • Some banks charged a certain amount of money when one cashed an open cheque with them.
   • It is an open cheque because the Government has no idea what the cost of these new rights and privileges will be.
   • He mistook the open cheque for €50,000 as a personal contribution of €5,000.
6. 5.6Mathematics (of a set) not containing any of its limit points.
   〔数〕（集合）开的
   Example sentencesExamples

   • When combining two open sets the resulting set is again open.
   • Any metric space is an open subset of itself.
   • Open sets have a fundamental importance in the branch of topology.
   • Let the point set M be the sum of the open sets Mx, M2.

6Not concealing one's thoughts or feelings; frank and communicative.

我是非常直言不讳的。

1. 6.1 Not concealed.
   不隐瞒的；显而易见的
   his eyes showed open admiration as they swept over her

   当他的目光扫过她的时候流露出明显的钦佩。

   Example sentencesExamples

   • We can see his influence in the works of Van Gogh, Cezanne and Matisse, who was open in his admiration.
   • It was open knowledge that the City had lost confidence in the police chief.
   • He watched in open admiration as she downed the whole lot in several large gulps.
   • To push on with the reclamation shows open disregard for these international agreements.
   • The first part of this argument is an open attack on the freedom of opinion.
   • The open admiration in her eyes was hard to bear, but deflating it was even harder.
   • She interpreted the least amount of kindness from a man as an open declaration of love.
   • Visiting divers will look at you with open admiration when you ask them which part of the wreck they would like to dive on.

   Synonyms

   overt, obvious, patent, manifest, palpable, conspicuous, plain, undisguised, unconcealed, unhidden, clear, noticeable, visible, apparent, evident

   blatant, flagrant, barefaced, brazen
2. 6.2attributive (of conflict) fully developed and unconcealed.
   （矛盾）激化的；公开的
   the dispute erupted into open war

   争端演变成一场公开的战争。

   Example sentencesExamples

   • Now, the open clash of arms would be replaced by a fierce contest of wills and ideas.
   • Despite the open warfare, officials insist that tourists will be safe.
   • The tensions erupted into open clashes between the two sides last month, leaving two people dead.
   • Long-handled battle-axes might be used instead of swords, particularly in open combat.
   • At the same time, they carefully avoided an open confrontation with their far more powerful rival.
   • Recent national events helped turn the simmering discord into open conflict.
   • It is now dawning on her that low intensity warfare is perhaps more damaging than an open war.
   • The massacre of a Roman magistrate and his staff signalled open warfare.
   • As the stakes rise, open war between these nuclear powers becomes possible.
   • Now, however, there is growing agreement that an open conflict will prove inevitable.
   • The issue has led to an open conflict with the leader of the Socialist Party.
   • The difference this time, however, is that the talk is not of open war but of destabilisation.
   • There had been times of truce but again and again the hostilities became open war once more.
   • The history of the Virginia colonies is set against a backdrop of the descent into open conflict with Spain.
   • In 1244 a golden opportunity appeared when open war broke out between Damascus and Egypt.
   • Unlike conventional warfare, they are not seeking to take territory or defeat us in open battle.
   • With most of Scotland liberated, they were prepared for an open battle with an English army.
   • There is now acknowledged open warfare between the prime minister and the chancellor.
   • The Romans were the masters of open battle.
   • Many people fear the longer the issue remains unresolved, the greater the possibility of open conflict.
3. 6.3 Welcoming public discussion, criticism, and enquiry.
   公开的；能接受意见、批评和询问的
   the party's commitment to open government

   他简要地阐述了党对民主和公开政府的承诺。

   Example sentencesExamples

   • Free and open debate on the Senate floor ensures citizens have a say in their government.
   • The day that we live in a truly open and free society will be the day that truth is widely known to us all.
   • This was far from the freedom of speech and open democratic discussion I'd imagined.
   • New Zealand's Parliament is the most accessible and open in the developed world.
   • That's the least we can ask for in an open, free, democratic society.
   • This is a serious problem, for the media is incredibly vital to a free, open, and democratic society.
   • Are there any thoughts on the need for a free and open media?
   • The answer may lie in a more open approach with both sides being encouraged to submit observations.
   • An open and free media can play an important role in the fight against poverty.
   • If you can encourage your MP to support the resolution then we can at last have an open debate on the matter.

   Synonyms

   public, general, unrestricted, non-exclusive, accessible to everyone, non-restrictive
4. 6.4 (of a game or style of play) characterized by action which is spread out over the field.
   （比赛或游戏）散开的，满场都是的
   both sides played fast, open rugby to produce a high-scoring game

   Example sentencesExamples

   • Rugby League is a fast, aggressive, open game.
   • The game was a cracker with some fantastic open football and long range scoring from both sides.
   • Try scoring chances had been few, despite the efforts of both sides to play an open game.
   • What I really like about your football is that the games are very open and the teams are very strong and team play is very united.
   • I'd like to see France beat them because they play a more open game.
   • Both sides play a similar open style of rugby which should produce a fine spectacle.
   • The two teams played an animated game of open hockey, creating good chances at both ends.
   • His presence in midfield has proved the catalyst for Saints' exciting open style of play.
   • Both teams made light of atrocious conditions and tried to play open rugby.
   • It was end-to-end, open football and there were a lot of great opportunities in the match.
   • It's so much easier to score goals employing a more open style of play.
   • The game then settled down into an engrossing encounter with some excellent passages of open play.
   • Coming into this game, Charlestown's open style of football was the talk of the county.
   • Improved playing surfaces this season have helped the Sharks, a side who like to play fast, open rugby.
   • Nottingham's open style then paid dividends when their hooker crossed for the first try of the game.
   • They played a very open and expansive game with all the players looking to get involved.
   • I like the way they play by heart, the open polo they play, and the way they ride on horseback.
   • The second half was a more more fluid and open passage of play.
   • With both teams willing to play fast open rugby, spectators were treated to a great game.
   • They made great inroads which allowed our backs the room to play some open football.

7(of a matter or decision) not finally settled; still admitting of debate.

学生们可以在第二年再作出对学位的选择。

1. 7.1 (of the mind) accessible to new ideas.
   能接受新思想的；开放的
   I'm keeping an open mind about my future

   我对我的未来持开放的想法。

   Example sentencesExamples

   • My father is extremely well read and from him I've learned the value of an open mind.
   • Be patient with the people who matter most, and listen to their ideas with an open mind.
   • There are no qualifications needed other than an open mind and a willingness to listen.
   • At this stage we have an open mind on all the options - that is what the consultation is about.
   • They have said that they are still keeping an open mind and would not be drawn on whether it is now a murder or missing person inquiry.
   • If you go with an open mind and accept it for what it is you can't fail to have a good time.
   • You should keep an open mind while reading any book and adopting any style from these books.
   • I think the biggest thing I have learned is to always keep an open mind and always look for a new approach.
   • You have to show yourselves as people with open minds, receptive to the ideas of independent voices in the boardroom.
   • It is about having an open mind, about finding potential solutions.
   • No one ever said it was going to be easy but with an open mind anything is possible.
   • Keep an open mind when it comes to exercise and don't be afraid of change.
   • I'm just going to go in there with an open mind and try to handle it as appropriately as I can.
   • I'd never heard of the guy before, so I approached the movie with an open mind.
   • I always come into these things with an open mind, but they need to be justified.
   • The more you understand why something has turned out the way it has, the more you can empathise and think with an open mind.
   • Wander the streets and markets alone, with an open mind, friendly face and polite gestures.
   • You want people to go in with an open mind and just enjoy what they see.
   • We are keeping an open mind on what other criminal activities he may have been involved in.
   • Those who have learnt to approach art with an open mind know that it's rewarding.

   Synonyms

   impartial, unbiased, unprejudiced, objective, disinterested, uncommitted, non-partisan, non-discriminatory, neutral, dispassionate, detached
2. 7.2open to Receptive to.
   乐于接受的；愿意考虑的
   the union was open to suggestions for improvements

   工会乐意接受改进工作的建议。

   Example sentencesExamples

   • No group has the total answer and we would certainly be open to any ideas, suggestions and views.
   • It suggests you are open to constructive criticism and willing to learn from the experience of others.
   • But we need to try new things and be open to wider possibilities of involving more people.
   • Be open to suggestions and invitations from people you meet along the way.
   • She told the audience a lot could be done with the site to the good of the village and the group was open to suggestions.
   • The inquiry is willing to consider other issues and is open to suggestion from readers.
   • Nightclubs have realized that crowds are more open to new sounds than most bookers think.
   • Naturally, we are open to further suggestions to raise the profile of the camera vehicles.
   • She was open to suggestion on how her album should sound.
   • If the property is still available in a month, by then the vendor is likely to be more anxious and more open to offers.
   • It is important not to take a narrow view on how we work at the track, but to be open to new suggestions.
   • He has been at pains to make it clear to staff that he is open to suggestions on ways to improve their work.
   • We are open to suggestions but at this time we would have to study it further.
   • Albert appears, at least on the surface, to be far more open to ideas and possibilities.
   • I can't even begin to remember the last time I was so spontaneous and open to suggestion.
   • Banks respect them and tend to be open to their suggestions.
   • Albert is quick to point out that he is open to more writer-in-residence positions.

   Synonyms

   receptive, amenable, willing/ready/disposed to listen, responsive
3. 7.3open to Admitting of; making possible.
   允许的；使可能的
   the message is open to different interpretations

   这条信息可以有多种不同的解释。

   Example sentencesExamples

   • It has been argued, for example, that the decision is open to two possible interpretations.
   • However, tolerance is a complex and even contentious concept open to several interpretations.
   • Why that should be remains open to a number of different interpretations.
   • Furthermore, what befalls the body itself may be open to different interpretations.
   • This is so because many of the laws of the game are open to different interpretations by the referee.
   • You tell a story, but leave it open to personal interpretation.

   Synonyms

   capable of, admitting of, receptive of, open to, responsive to

8Phonetics
(of a vowel) produced with a relatively wide opening of the mouth and the tongue kept low.

1. 8.1 (of a syllable) ending in a vowel.
   （音节）以元音结尾的
   Example sentencesExamples

   • In comparison, the long vowels, which can occur in open syllables, show a higher degree of phonological autonomy.
   • The first syllable is open, has a long vowel, and is not accented.
   • He provides a great deal of hard information about transposing brass instruments, such as hand horns crooked in different keys to give a maximum of open notes.
   • All Japanese syllables are open.
   • The system consisted mainly of symbols representing open syllables.
   • Alex felt her guitar continuously play the open notes.
   • When an open note is followed by a fretted note on the same string, it is damped when the fretted note is formed.
   • There is a preference among many world languages for open syllables.

9Music
(of a string) allowed to vibrate along its whole length.

1. 9.1 (of a pipe) unstopped at each end.
   （音管）两端不封闭的
   Example sentencesExamples

   • Firstly, he unscrews the cap from the toothpaste and lays the open tube to the right of the basin.
   • If there is a drop outlet or an open gutter at the other end of the run, install an end cap there, too.
   • There was an open pipe between the two adjoining properties.
   • Water ran in and out via open pipes and troughs.
2. 9.2 (of a note) sounded from an open string or pipe.
   （音）弦空的，开放的
   Example sentencesExamples

   • He provides a great deal of hard information about transposing brass instruments, such as hand horns crooked in different keys to give a maximum of open notes.
   • Alex felt her guitar continuously play the open notes.
   • When an open note is followed by a fretted note on the same string, it is damped when the fretted note is formed.

10(of an electric circuit) having a break in the conducting path.

1Move (a door or window) so as to leave a space allowing access and vision.

她打开门走了进去。

1. 1.1no object (of a door or window) be moved to leave a space allowing access.
   打开（门或窗）
   the door opened and a man came out

   门开了，一个男人走了出来。

   Example sentencesExamples

   • The gates slowly opened with a loud creak.
   • The tailgate window opens separately if you press an exterior switch.
   • The rear window even opens independently of the boot.
   • The door opened with a slight creak and I allowed myself into his room.
   • A window opened and a girl around the age of eleven or twelve poked her head out the window.
   • The door opened and I entered the dark corridor, closing the door behind me.
   • The door opens and he is escorted out into the room next door.
   • He heard a flush and the click of the bathroom door opening.
   • After a couple of seconds the door opened and a man's face appeared behind the door.
   • There was a low click and the gate slowly opened with a horrible squeaking sound.
   • When he heard the door open he moved slightly and Emily rose rubbing her sleepy eyes.
   • After a minute, the door opened, and a pretty face popped out of the door.
   • She was about to walk over to her window and balcony when the door opened and Hazel walked in.
   • The door opened, allowing many of the gathered ceremonial officers to glance at the guest.
   • A small window in the door opened abruptly and a face with an annoyed expression appeared.
   • My window suddenly opened quickly, knocking me back to the ground in surprise.
   • It is understood both children were on the rear seat of the coach when the door opened, allowing them to fall out.
   • She got the elevator moving and was still upset at Noah when the doors opened before their floor.
   • There was this figure peering out of the front left window as the door opened.
   • I assume all doors in public places open outwards, for fire safety reasons.
2. 1.2 Undo or remove the lid, cover, or fastening of (a container, package, letter, etc.) to get access to the contents.
   打开；拧开（盖子）；拆开
   he opened a bottle inexpertly, spilling some of the wine

   他笨拙地打开了瓶盖，洒出了一些酒。

   can we open the presents now?

   我们现在能把礼物打开了吗？

   Example sentencesExamples

   • We will be able to gauge the degree of caution that needs to be exercised when each container is opened.
   • When you open a can of food but don't use it all, empty the rest of the contents into another container and put it in the fridge.
   • She then opened the container and one by one removed the six items and placed them on the counter.
   • I couldn't resist, I had to open one of the containers to see for myself.
   • He opened the box and removed five hundred dollars in cash and a handful of fake passports.
   • When we opened the letter, it said I was selected as a member of the National Junior Team!
   • He opened a can of beer and stretched out on the floor.
   • He calmly reached into his pocket with his free hand and removed a bottle of pills, which he opened.
   • The people in charge of the post room called the police, who proceeded to gingerly open the package.
   • I take numerous pills and every container I open comes with a pamphlet warning of possible side effects.
   • He opens the envelope and removes a yellow card and a blue one.
   • Arriving at the till the woman asked me to open my container so she could check what was inside it.
   • Then the envelope was opened to reveal the actual chosen card.
   • Sitting down beside me he carefully opened the box and removed a small brown brick.
   • Madison opens the unsealed envelope and removes the single sheet of paper inside.
   • She must have struggled to open the container for the pills.
   • After a while she was cajoled into opening the letter.
   • We opened a bottle of champagne to celebrate.
   • He opened a container on his counter and took out some fat buttermilk biscuits.
   • Something tells me the shoplifters have no problem opening these packages.

   Synonyms

   unwrap, undo, untie, unseal

   uncork, broach, crack (open)
3. 1.3 Part the lips or lids of (one's mouth or eye)
   张开（嘴巴）；睁开（眼睛）
   she opened her mouth to argue

   她张嘴争辩。

   Example sentencesExamples

   • As I opened my eyes, I saw a quite big spider disappearing over the edge of my pillow.
   • He is doing much better after surgery and opened his eyes for the first time on Sunday.
   • I remember opening an eye one groggy morning to notice a big black spot on the wall.
   • I had barely opened my mouth to hurl expletives before he said something else.
   • I remember wanting to scream, but I couldn't open my mouth, couldn't even open my eyes.
   • He opened his eyes and, having watched her for a while, he asked her what she was doing.
   • I opened my eyes and the first things I looked at were my hands.
   • He opened his eyes, looked up, and before him stood a large rotund figure smiling down at him.
   • He opened his mouth in glee and looked up, hoping to drink the rain water.
   • You open your mouth to say something, but only one thing comes out.
   • A student knows whether they like the professor or not before that professor even opens his or her mouth on the first day of class.
   • He opened his eyes when I spoke but he was not in great shape.
   • He opened his eyes and saw the burglar, who was about 5ft 6in and wearing a hooded top.
   • It was at this point that I opened my eyes, coming out of the dream and finding myself awake in my bedroom.
   • What was going through his head when he decided to open his big fat mouth and blurt out something that was so unexpected?
   • Before I could open my mouth to say ‘good evening’ he launched into his sales pitch.
   • Her eyes flashed and she opened her mouth to say more, then snapped it shut, and looked away.
   • What is the first thing you see when you open your eyes in the morning?
   • She opened her mouth, trying to speak, but no words came out.
   • There is nothing random or left to chance when an ambassador opens his or her mouth.
4. 1.4no object (of the mouth or eyes) have the lips or lids parted.
   （嘴巴）张开着的；（眼睛）睁着的
   her eyes slowly opened

   她的眼睛慢慢地睁开了。

   Example sentencesExamples

   • He still wouldn't look at her, though his eyes slowly opened to gaze back at his reflection.
   • Jessie's eyes slowly opened, having a hard time adjusting to the darkness around her.
   • Then her eyes opened slowly and she tried to lift her head and look around.
   • Her eyes opened slowly and she had to blink a few times to adjust her eyes to the lights that were still on around her in the room.
   • Jessie's eyes slowly opened, but they quickly closed as a cold gust of air blew into her face.
   • Her eyes opened slowly, and the world around her was bathed in pale shades of blue.
   • In a moment, he was still again, his eyes opening slowly with tears trickling from them.
   • Casey's eyes opened wide, her mouth spitting out words before she could think.
   • When it touched his eyelids, he groaned in annoyance, his eyes slowly opening.
   • Mitch coughed, as his eyes opened and he brought a fist up to cover his mouth.
   • Her eyes slowly opened and a small smile played on her lips as she picked up her pen and began writing.
   • She could feel her eyes slowly opening, and all she saw was red for a moment.
   • My eyes slowly opened to see a bright fluorescent light and a ceiling like you would see in an office building.
   • Josh's eyes opened slowly, and he blinked a couple of times before he turned his gaze to me.
   • His grip on me tightened and his eyes opened slowly, the sleepiness evident in them.
   • My eyes opened slowly and I looked around, trying to figure out exactly where I was.
   • I slowly sat up as my eyes opened to sunlight that was filtering through the blinds.
   • Suddenly her eyes opened wide in shock.
   • She heard him groan in protest as his eyes slowly opened, adjusting to the light of the room.
   • His eyes hadn't opened at all in a couple of weeks.
5. 1.5no object Come apart; lose or lack its protective covering.
   裂开；失去（或缺少）保护层
   old wounds opened and I bled a little bit

   旧伤口裂开，我流了点血。

   Example sentencesExamples

   • He opened all the wounds all over again because I realized I never got over my first love.
   • But many more wounds will be opened before the government can stabilise this deeply tortured nation.
   • Old wounds opened as he remembered the sting of refused sanctuaries and broken friendships.
   • His side had not recovered from the night in the palace, and the wound had opened again, blood pouring out.
   • A wound had opened that could not heal, at least, not one that she could do anything about.
   • Old wounds were opening again and I was finding it impossible to heal them.
6. 1.6open on to/intono object (of a room, door, or window) give access to.
   （房间、门或窗等）通往
   the kitchen opened into a pleasant sitting room

   厨房通往舒适的客厅。

   Example sentencesExamples

   • The hotel room had French doors opening onto a little balcony that overlooked a regular street.
   • To the left, double doors open onto a reception room with a bay window at the front.
   • A low semicircular wrought iron door opens onto a long and narrow room.
   • Sliding doors from the living room open onto a balcony.
   • The front door opens onto the living room, which has an open fireplace and timber flooring.
   • Corner doors open onto the main meeting room.
   • This room features full-length windows and patio doors opening onto a private balcony.
   • This leads into a double utility room with a patio door that opens onto a private, paved garden overlooking the coast.
   • This bright room has a large bay window with double doors opening onto a patio.
   • At the back of the hall, glass-panelled double doors open onto the kitchen.
   • All the rooms at this level have French doors opening onto a huge terracotta patio that can hold up to 300 people.
   • Stone and redbrick steps lead to arched double doors which open onto the communal hallway.
   • The downstairs cellar room had a door that opened onto the beach.
   • The front door opens onto a central passage and four rooms of nearly equal size.
   • The flat has a large living/dining room with doors opening onto the garden.
   • Even the children's rooms, located directly above the dining room and adjacent kitchen, have doors, not windows, that open onto French balconies.
   • Big doors open onto a plant-filled terrace where a jazz band plays on Saturday evenings.
   • Go to the door that opens onto the parking lot and the voting room is on the right.
   • Members of the same household often sleep in separate dwellings, but their doors open onto a communal space where cooking and social interaction take place.
   • From the hall, a set of glass doors open onto to the main reception rooms.

   Synonyms

   give access, give on to, lead, be connected, communicate with

   command a view of, face, overlook
7. 1.7 Cause evacuation of (the bowels).
   使肠胃畅通
   Example sentencesExamples

   • It can cause sharp pain, especially when opening the bowels.
   • The pain may be mild or severe, and may be made either better or worse by opening the bowels, passing wind or eating.
   • These pains are typically sharp and knife-like due to the fissure opening up each time your bowels are opened.
   • The earliest symptom is often bleeding of fresh, red blood from the anal passage when the bowels are opened.

2Unfold or be unfolded; spread out.

老鹰展开双翅盘旋地飞向空中。

当尾巴完全展开的时候看上去就像一把扇子。

1. 2.1with object Part the covers of (a book or file) to read it.
   翻开（书或文件）
   she opened her book at the prologue

   她张嘴争辩。

   Example sentencesExamples

   • You turn the book over, open the cover, go to the first page and begin again.
   • As I opened my book and was about to start reading some one decides to start talking to me.
   • Rodrigo opens a newspaper, looking for dancers' advertisements.
   • The pupils were crushed together and had barely enough space to open a book in front of them.
   • He shifts his specs down his nose, opens his book and reads in an exaggerated manner.
   • I opened the book at a random page and read the first quote that my eyes looked upon.
   • She opens the book at a random page and starts reading aloud.
   • There are 107 illustrations, the print is good, and the book can be opened flat without the spine creasing.
   • I opened my Economics book to study for a test I had the next day, but it was futile.
   • She opened the file and read through a bit of it.
   • I walked over to the living room and sat on the chair, opening my book again and reading.
   • She opens the journal with her father's name on it.
   • Before I opened the book, I had a good indication about what to expect after looking at the front cover.
   • I flipped open my Algebra book and glanced at the chapter we were supposed to read and do the exercises from.
   • Alex looked at the blank cover for a while before opening the book and smiling.
   • Mrs. Marchmill opened one of the books, and saw the owner's name written on the title-page.
   • The break also allowed me time to read a book I purchased some months age but did not open.
   • Walking into a book shop, Carl opens a volume of Pride and Prejudice, to find it contains hundreds of pages of the first sentence, repeated over and over.
   • I opened the book and looked at the handwriting on the first page.
   • But you can't open a paper these days without seeing stories about the uselessness of boys.
2. 2.2open outno object Become wider.
   the path opened out into a glade

   这条小路渐渐开阔，延伸到一片林中空地。

   Example sentencesExamples

   • A low exit down through the hole soon enlarges from flat-out to hands and knees and opens out into The Canyon.
   • The river starts life in the magnificent hills of Glen Affric, before opening out into a wide and sparkling salmon stream.
   • Just when you think you've gone the wrong way, the sea becomes visible ahead and the path opens out on to a glorious pebbled beach.
   • The path opened out onto a small field, with a thick, dark forest beyond it that was always a good hiding place.
   • From the Cardrona hotel the valley opens out and willows grow beside the little Cardrona River.
   • Eventually, after a particularly tortuous twist, the path opened out.
   • For the last and lovely couple of miles, the valley opens out and the flow is wide and the scene has an almost Scottish look.
   • After that time the sea looms into view as the river opens out.
   • Every now and then the path opens out to another viewing point accessible by road, and the crowds return.
   • After half a mile of climbing, the path levelled and the landscape opened out, there were drifts a couple of feet deep at gaps and gateways.
   • Once you are through the sand dunes, another smaller bay opens out.
   • After a little way the road opens out and there's a grass verge you can walk on.

   Synonyms

   broaden, become wider, make wider, open up, open out, spread, expand, extend, enlarge, stretch
3. 2.3no object, with adverbial (of a prospect) extend into view.
   展现
   stop to marvel at the views that open out below

   停下来惊奇地观赏展现在眼底下的景色。

   Example sentencesExamples

   • After two hours through narrow mountain roads, hangover complaints, and a final long curve to the west, South Park opens out in front of us like a book.
   • It is only at the last minute that the vista opens out.
   • Then, as the highway approaches Three Rivers, the view opens to encompass the snow-covered Sierra.
   • At Cypress Hills Interprovincial Park, hike a challenging trail to a viewpoint where the prairie opens before you with a great view.
   • Gradually Rosedale opened to view and we dipped into North Dale which is hidden from the fray but spacious.
   • Then the vast sandy expanse of Mason's Bay opens out ahead.
   • As a new dawn breaks, Western Europe opens out in front of me.
   • Then, at Goose How, the views open towards Kentmere and the Horseshoe of hills beyond.
   • As the road bends left again the spread of the Kentmere Horseshoe opens out ahead.
   • On one side is a sheer drop and on the other is a slope with a view that starts in the clouds but opens up to reveal the entire Alpine Valley, including the Matterhorn.
   • As I climb higher, a woodland panorama opens up below me.
4. 2.4Nautical with object Achieve a clear view of (a place) by sailing past a headland or other obstruction.
   〔航海〕（驶过海岬或其他挡住视线的障碍物而）看见
   we shall open Torbay shortly

   我们很快就能看见托培了。

   Example sentencesExamples

   • At length we opened the Bay of New York.
   • As soon as we opened the head-land to the westward of us, a sudden squall took the boat.

3Make or become formally ready for customers, visitors, or business.

她开放了她的家并出售咖啡和茶，筹集到了731美元。

这些商店到10点才开门。

1. 3.1with object Ceremonially declare (a building, road, etc.) to be completed and ready for use.
   举行（建筑或道路等的）竣工仪式
   the Queen opened the power plant on 17 October 1956

   女王在1956年10月17日宣布电厂竣工投产。

   Example sentencesExamples

   • Milltown will have it's new Community Centre opened by the President.
   • It was designed by Sir Edwin Cooper and was formally opened by King George V and Queen Mary in 1924.
   • The Queen opened the new City Hall this morning on the South Bank.
   • It is understood that the flyover is set to be formally opened later this week, possibly by a Government Minister.
   • Pocklington Canal was opened in 1818 and was a vital transport link for the market town.
   • The refurbished Community Centre was formally opened on Sunday afternoon.
   • The eight storey library next to the National Museum was opened in 1967.
   • The Duke also spoke to gym members before he opened the building in front of local dignitaries and pool users.
   • The East Lancashire Railway was opened in 1846 to link Manchester with Bury and Rossendale.
   • He then officially opened a new Parish Office, which is located in the former mortuary of the Church.
   • Princess Anne proved to be a popular visitor when she opened the new Wharfedale Hospital yesterday.
   • The new hospital will be officially opened, possibly by the Princess Royal herself, in the summer.
   • In 1987 he opened the new Manx Pathology Laboratory named after himself.
   • It is hoped that the visitor centre will be opened by the Queen before the Commonwealth Games.
   • The Margaret Pyke Centre was opened by the Duke of Edinburgh in November 1969.
   • This afternoon the Queen will open the new Wellcome Wing of the Science Museum in London.
   • On the same day in 1932 the New Shakespeare Memorial Theatre was opened by the Prince of Wales.
   • A new dock built to refit Britain's Trident submarines has been officially opened at Devonport.
   • The formal business of officially opening the premises is then expected to take place.
   • In 1884 the State Opera House was opened in Budapest with its own ballet company attached.
2. 3.2with object Make possible access to or passage through.
   使开通，使开放
   the President announced that his government would open the border

   总统宣布他的政府将开放边境。

   Example sentencesExamples

   • The US Department of Agriculture said Wednesday the border could be opened in March.
   • He believed firmly that the future growth of the French economy depended on opening its frontiers and increasing international trade.
   • The acquisition opens up new avenues when it comes to player recruitment.
   • This development is pushing boundaries and opening up new avenues for exploration.
   • These stones can be viewed in the archeological tunnels that have been opened in the past few years.
   • And on the way back, the bridge opened to let a sailing boat through.
   • The prospect of further rises in interest rates on top of this week's increase opens the way to speculation about how much we will be paying by the end of this year.
   • The decision opens the previously protected areas to development.
   • So while borders are being opened to indiscriminate trade, small producers are being regulated out of existence.
   • We're going to have nothing but trouble if the border is opened.
   • Each new piece of technology opens more avenues to explore.

4Formally establish or begin (a new business, movement, or enterprise)

她开始教书并开办了自己的学校。

我们在马德里开设了一个分公司。

1. 4.1no object (of an enterprise, meeting, or event) begin or be formally established.
   （公司）开业；（会议、活动等）开幕
   two new restaurants open this week

   本周有两家新餐馆开业。

   Example sentencesExamples

   • A business club which opened in Bradford more than 60 years ago has been forced to shut.
   • We have had over three million visitors since we first opened and are adding to that all the time.
   • The Stockport showroom opened for business earlier this month and hopes to sell both new and pre-owned cars.
   • The church-led project opened in August last year but closed in February when it failed to attract enough visitors.
   • In the nine years since his business opened, O'Malley says his revenues have increased about 30 percent each year.
   • One of the companies involved is MessageCare, a small Sydney business that opened in March.
   • Despite election fever, there is time for other things and two remarkable new enterprises have just opened in New York.
   • It's always good to see new businesses opening in Baltinglass, especially ones that provide a new range of services.
   • Shell's refinery opened for business in 1984, and the company has been a part of the town ever since.
   • The company was one of Scotland's first inward investors, opening for business in Newhouse in 1948.
   • The shop has been hugely popular since it first opened, with customers flocking in to try the different flavoured pasties on offer.
   • On a similar note, Glasgow has a brand new music venue opening.
   • The roast chicken pie has been most popular seller since the Glasgow shop opened for business a week ago.
   • The new venture opens with a variety of menus.
   • The new restaurant opened in December.

   Synonyms

   start trading, open for business, be ready for customers/visitors, admit customers, begin business, set up shop, put up one's plate

   North American informal hang out one's shingle

   begin, start, initiate, set in motion, launch, get going, get under way, start/get/set the ball rolling, get off the ground

   inaugurate

   informal kick off, get the show on the road

   formal commence
2. 4.2 Take the action required to begin using.
   开立，打开
   they have the £10 necessary to open a savings account

   他们有开立储蓄账户所必需的10英镑。

   click twice to open a file for the software selected

   双击来打开所选软件的文件。

   Example sentencesExamples

   • If you do not have a telephone betting account you will be required to open one in order to collect your prize.
   • Add any new address that you want to keep receiving to the new rule by opening Rules Wizard and clicking Modify.
   • Title bars have menus which are opened with right mouse clicks in the title area.
   • In Germany it is possible to buy small gold bars and coins and open gold accounts in bank branches.
   • After your friend receives the file, a password is required to open and execute the file.
   • Many banks offer a savings account paying a competitive rate of interest on regular savings, provided the customer also opens a specific current account with the bank.
   • It might just be worth opening an account to trade in these last couple of weeks.
   • Decide how much of your money you can afford to tie up and how much you might need to access, and then open accounts that meet both needs.
3. 4.3no object (of a piece of writing or music) begin.
   （文章、乐章等的）开始
   the chapter opens with a discussion of Anglo-Irish relations

   该章以讨论英国和爱尔兰的关系开始。

   Example sentencesExamples

   • Chapter 33 opens with the harvesting of the barley and the gathering of the season's apples and nuts.
   • Each chapter opens with a section on general community ecology.
   • Part II opens with a chapter on the relationship between writing and social organization.
   • As Chapter III opens, Gulliver and his captors have become great friends.
   • Told in short, often barely scene-long chapters, it opens with a young man's death leap into the sea.
   • The piece opens with a yearning, lyrical duet.
   • Each chapter opens with an overview in the form of a bulleted list of paragraphs, and each concludes with a literature cited section.
   • Every chapter opens with the colorful evocation of a particular scene, with plenty of contemporary detail to flesh out the text.
   • The great Broadway show The Music Man opens with the musical number ‘You Gotta Know the Territory!’
   • The piece opens with Sal attempting to buy a peach.
   • The album opens with three pieces consisting of nothing more than voice and guitar.
   • Each chapter opens with a ‘primer’ that familiarizes the reader with the topics covered in the upcoming chapter.
   • The astonishing first chapter opens in 1950.
   • The piece opened with an ensemble dance on a sloping lawn at the park's south end.
   • The first chapter opens with the collapse of Nero's regime and his subsequent suicide.
   • Every chapter opens with a beautiful poem about Mary written by the author.
   • Chapter one opens by speaking to all readers about nurses in the twenty-first century.
   • The piece opens with a solo tenor singing to a relatively straightforward piano accompaniment.
   • This story opens with him writing, but he is soon interrupted by a call to supply the book for an opera.
   • The Chapter opens with a discussion of the general principles governing a bank's liability.
4. 4.4open upno object (of a process) start to develop.
   （过程）开始发展
   a new and dramatic phase was opening up

   一个崭新的、戏剧性的阶段马上要开始了。

   Example sentencesExamples

   • A great opportunity is opening up before the environmental movement.
   • A completely new political and social phase is opening up in Italy.
   • A struggle for the re-division of the world has opened up and this process dominates politics.
   • Today a new political era is opening up.
5. 4.5 (of a counsel in a law court) make a preliminary statement in (a case) before calling witnesses.
   （法庭上的律师在传目击证人之前）首次陈述，肇始
   Bernard had opened the case

   no object Comyn opened for the plaintiff

   Example sentencesExamples

   • Mr McKendrick then opened the defence case and the panel heard evidence from the defendant himself and from his mother.
   • Miss Freeborn opened her case by saying it was necessary further to interview Ms U and the Appellant.
   • She made this remark while opening her case to the jury.
   • Certainly there are a number of States where it is the practice for the defence to open their case.
   • It cannot realistically be suggested that counsel's error in opening the case had any influence upon the course of the trial.
6. 4.6Cricket
   another term for open the batting below

   Example sentencesExamples

   • I remember him hooking Freddie Trueman for six when he opened for Australia.
   • I would like to see a batting order of Sehwag and Gilchrist opening, with Ponting, Lara and Tendulkar making up the middle-order for the team.
   • Who should open for the Indian cricket team?
7. 4.7Bridge Make (the first bid) in the auction.
   〔桥牌〕开始叫牌
   West opened 2NT

   no object do not open with fewer than twelve points

   Example sentencesExamples

   • I opened one heart, and the opponents messed up the ensuing auction and defence.
   • I don't want to tell you to open at the one level every time you have four points and your partner can't open.
   • We opened spades, and they bid clubs.

5Make available or more widely known.

新技术提供了成千上万个不同的机会。

1. 5.1open out/upno object Become more communicative or confiding.
   更畅谈；更直言
   he was very reserved and only opened out to her slowly

   他非常内向，只对她慢慢袒露心声。

   Example sentencesExamples

   • Grace enjoys her work with Gemma, but has a difficult time getting Jack to open up.
   • To feel safe and secure in your relationship, you'll have to open up and communicate how you feel.
   • How do you get a victim of bullying to open up and admit it?
   • They began to open up to me and confide all sorts of personal stories.
   • At other times he appeared to be opening up to the public.
2. 5.2 Make (one's mind) more receptive or sympathetic.
   使（心灵）更善于接受的；更富有同情心的
   open your mind to what is going on around you

   要接纳发生在你身边的事。

   Example sentencesExamples

   • I will concede that foreign travel isn't for everyone but I'm firm in my belief that travel really opens one's mind and helps nurture a respect for the international community.
   • It's time for people to start to open their minds a little and experience.
   • All I ask for is that you open your minds a little bit, and admit that maybe your way might not be right.
   • Your students' minds will be opened to how far art and design reach into our daily lives.
   • So anyway, my point is that society, or at least part of it, seems to be opening their minds a little.
3. 5.3open someone to/up to Make someone vulnerable to.
   使某人易受到打击
   the process is going to open them to a legal threat

   这个过程会使他们受到法律威胁。

   Example sentencesExamples

   • This factor opens NATO to new criticisms that did not exist in 1997 and 1998.
   • The question is, what type of risks does each course of action open us up to?
   • Never be completely honest, especially with your partner because revealing everything opens yourself up to being vulnerable.
   • Does this open him to charges of conspiracy to commit torture?
   • The House of Commons was opened to almost universal derision.
   • This decision would open him to attacks that he had broken his earlier pledge to adhere to the spending ceilings.
   • Companies are very concerned that this opens them up to whole new levels of liability that, prior to the Internet, they were not going to have to worry about.
   • Arguing against minimum wage laws because they harm small businesses or lead to rising prices opens us up to just the kind of counterargument so vividly pointed out in this story.
   • However, while defining your market by more than what you make gives you more opportunity, it also opens you to more competition.
   • It's opened him up to all these attacks which are awkward to answer.

6Break the conducting path of (an electric circuit)

开关断开发动机的电流。

1. 6.1no object (of an electric circuit or device) suffer a break in its conducting path.
   （电路）开路的，断路的
   the problem was caused when a switch opened at the substation

   Example sentencesExamples

   • The motor circuit will open if an over-temperature condition develops.
   • The normally closed alarm circuit will open if a fault occurs in either of the input power supplies.
   • If the demand for electrical current exceeds the safety level, a fuse opens once and must be replaced to reconnect the circuit.

1in/into the openmass noun Outdoors or in the countryside.

客人们坐在露天的阳台上。

1. 1.1in/into the open Not subject to concealment; made public.
   公开；泄露
   we have never let our dislike for him come into the open

   我们从未表露过对他的不喜欢。

   Example sentencesExamples

   • If Britain is to be part of that process, the matter has to be brought out into the open and openly debated.
   • Differences between right and left are likely to spill into the open after the election.
   • I'd like to use the panel to help bring that conversation more out into the open.
   • Unless all of this is brought into the open, it is going to imperil the future.
   • The court was told that the sexual relationship came out into the open following a family argument.
   • I think it is high time we had the debate and brought the issue into the open.
   • A challenger must come into the open and secure swift support across all wings of the party against the incumbent.
   • The discontent that had been brewing within the Workers' Party soon came out into the open.
   • It was only when I started asking questions that the whole thing came out into the open.
   • For how else are society's dark secrets to be brought out into the open?
   • All these rumours were starting and I think Andy just wanted to get it out into the open and thought it was the right time to do so.
   • The tragedy is that innocent French civilians had to pay such a high price for bringing everything into the open.
   • The effect of legal action is to drag the tobacco companies into the open, which is precisely where they don't want to be.
   • Alternatively, even nastier hidden stuff would be drawn out into the open.
   • He hated the idea of a clandestine affair and wanted to bring everything into the open.
   • We have to re - examine how we talk about sex and bring it into the open for rational, mature discussion.
   • Perhaps it came more out into the open when I went to Glasgow High School.
   • I think it did me some good to get some deeply buried thoughts and experiences out into the open.
   • They need to get these issues into the open and expose Labour's weaknesses.
   • It is very much in their interest to see that the affair does not come out into the open.

2A championship or competition with no restrictions on who may compete.

他在2003年澳大利亚公开赛上的胜利。

3An accidental break in the conducting path for an electric current.