英语词汇“ray”的意思、释义、用法解释及翻译-春雷网

ray¹

noun reɪreɪ

1Each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening.
光线；亮光
a ray of sunlight came through the window
从窗户透进一缕阳光。
Example sentencesExamples
- I can't move, I'm so enraptured by the way the last luminous rays of light dance over his glowing skin.
- The bright rays of sunshine streaming through her window were not at all comforting to her.
- Through studying the transformation of light rays passing through glass objects, he created the effect of movement of form.
- Light rays pass through the cornea and the lens and focus on the retina.
- The sun was low in the sky as the soft, warm rays hit her from the east.
- There was a slight ray of moonlight visible far above his head.
- A Camera Obscura is when an inverted image is created by rays of light passing through a pinhole into a dark space.
- The sun was out and Cay could feel its warm rays touching his back.
- The rays of dawn were tipping over the horizon.
- The sun is out now, and the floors are lit by the rays streaming though the window.
- The stars were glimmering across the night sky and the moon's rays shone upon her.
- His hair was of a brilliant blond mingled with the rays of silver moonlight.
- She stopped when she saw the first ray of sunshine on the ground of the cave.
- This means rays of light passing through will bend toward the center of the lens on entry.
- The shadow moved forward into view, the moon's rays shining dimly upon it.
- Through the breaks in the trees, Jocelyn could see the moon's ray shining down to the forest floor.
- Stunningly beautiful golden rays of sunlight crested the horizon and he smiled at the warmth.
- The first rays of light that passed her eyelids were very dim.
- She saw the first rays of sunlight push their way up from the horizon, and sighed.
- He raises the crown into the golden rays of summer sunshine streaming through the windows.
Synonyms
beam, shaft, streak, bar, pencil, finger, stream, gleam, flash, glint, glimmer, flicker, twinkle, shimmer
1. 1.1 The straight line in which light or other electromagnetic radiation travels to a given point.
  辐射状直线
  take a specific point and back-trace every ray of light that hits that point
  Example sentencesExamples
  Mirrors, spherical or otherwise, operate on the principle that the angle of reflection of a ray of light equals the angle at which it strikes the mirror's surface.
  This was the approach of geometrical optics, which treated light as moving in straight line rays which were reflected or refracted according to simple rules.
  The easiest way to describe light rays and light cones is through geometric optics.
  A light ray grazing the surface under those circumstances is bent, or refracted, upward.
  Instead of taking an algebraic approach, however, Halton used a shortcut inspired by the geometry of paths traced by rays of light.
2. 1.2with adjective or noun modifier rays A specified form of non-luminous radiation.
  射线，辐射线；粒子线
  ultraviolet rays
  Example sentencesExamples
  The radioactive glucose emits gamma rays which are then detected by the scanner.
  The HESS project deals with the detection, measuring and interpretation of high-energy cosmic rays.
  Look for one that promises to shield you from a broad spectrum of ultraviolet rays.
  The ozone layer protects the Earth's surface from the sun's harmful ultraviolet rays.
  However, the longer wavelength rays of ultraviolet light can also cause problems.
  A whole day of radiation of ultraviolet rays even kills the most resistant of germs.
  Surprisingly, x rays do not penetrate Earth's atmosphere, so astronomers must place x-ray telescopes in space.
  Gamma rays are a form of electromagnetic radiation, just like visible light or x rays, but with a much higher energy.
  The sun emits visible light, heat, ultraviolet rays, radio waves, and X-rays.
  Water is passed through a disinfecting chamber containing a quartz mercury lamp that emits ultraviolet light rays.
  For sunglasses, oversized Aviators are essential to block UV rays and look cool.
  But even more important is that it absorbs carcinogenic ultra-violet rays and electromagnetic radiation.
  The shock heats the material in the shell to temperatures over 1 million degrees, producing bright X rays.
  Telescopes designed to collect and focus X rays from space provide that vision.
  Also, some products block UVB rays, but not harmful UVA rays.
  Not while the earth was constantly being bombarded by cosmic rays from interstellar space.
  During the initial nuclear radiation mostly Gamma rays are emitted from the fireball.
  Lights that are used for SAD phototherapy must filter out harmful UV rays.
  The gluten also shields the helpful microbes from the sun's lethal ultraviolet rays.
  They are produced in the atmosphere by the interaction of galactic cosmic rays with the atoms of the atmosphere.
3. 1.3raysNorth American informal Sunlight considered in the context of sunbathing.
  〈非正式，主北美〉（日光浴用语）阳光
  catch some rays on a sandy beach
  在隐蔽的沙滩上晒太阳。
  Example sentencesExamples
  So let's head on down to that booth you were talking about and then catch some rays.
  Find out about the villa's position and orientation so you know that you do not have go to the beach in order to catch some rays.
  I was there five days, so got to know the soldiers who guarded me when I was fishing or just catching some rays, and the wives who were always bringing me fruit or a Coca-Cola.
  After some glorious lazy afternoons catching rays, taking dips and grabbing soft cones… summer s over.
  A guided hike in the morning which climbs out of the village is on offer as is the chance to catch some rays at the nearby lake.
  Two researchers specializing in the psychology of health say they've found a more productive way to wean sun worshipers from catching some rays.
  Before heading out to catch some rays, take a look at your checklist.
  They like to spend a lot of their time sunning themselves, so perfect opportunity up here, up the top on a sunny day to catch some rays.
  Sun, wind, sea and salt may have left their mark on hair that enjoyed days at the beach, in the pool or catching some rays.
  Midmountain, Sunshine Grill's deck lets you catch some rays over a burger or chili.
4. 1.4 An initial or slight indication of a positive or welcome quality in a time of difficulty or trouble.
  〈喻〉（困境中的）一丝（积极因素）
  if only I could see some ray of hope
  但愿我能看到一丝希望之光。
  Example sentencesExamples
  The President's farewell speech was a ray of hope.
  Although the concrete result of the proposal has yet to be seen, it nevertheless sparks a ray of hope for a peaceful solution in the troubled region.
  But Dean's impressive fundraising operation offers a ray of hope.
  The ray of hope in this is the age of the author.
  Shehnaz held her daughter's hand tightly lest destiny snatch her only child - the sole ray of hope in her otherwise gloomy life.
  One ray of hope is that the circumstances of the attack would give the Socialist Party a possible excuse for flip-flopping were they so inclined.
  "I hope the success of our expedition will lend a ray of hope to our people who are discouraged in their daily lives."
  At a time of continuous high unemployment, particularly in South Australia, statements like these were more than welcome and gave just a ray of hope.
  The commissioners comment, ‘This witness was a fresh and welcome ray of hope for the Tribunal.’
  In this ruling Kelly found a definite ray of hope.
  Most of all I feel really needed all of a sudden; I feel I can bring a slight ray of hope and variety to this ever more depressing world.
  There's a bright ray of sanity on the Los Angeles Times op-ed page.
  That's a ray of good news for the town of Steinhatchee.
  And what about ‘justice is not a function of power, but rather the ray of goodness that is one's salvation’?
  A ray of hope appears in the form of Mary Burke, the daughter of a heart attack victim who strikes a chord with the troubled Pierce.
  But when we talked, there was a small ray of hope.
  ‘The only ray of hope we had was the anchor rope,’ said Mr. Podiyan.
  Events in Europe offered Japan a delusory ray of hope.
  Some tenants felt Christmas would not generate big profit margins for them, but others saw a ray of hope with a late-buying binge.
  Faded Seaside Glamour was released in the winter, but brought rays of hope to grey, cold Britain.
  Synonyms
  glimmer, flicker, spark, glint, trace, hint, indication, suggestion, sign, scintilla, whisper
2Mathematics
Any of a set of straight lines passing through one point.
〔数〕半直线
the ray that runs from the centre of the circle to the point of tangency
Example sentencesExamples
- It is always wise to make a sketch of the system, including the ray bundles for the on-axis and off-axis imagery.
- All coding elements redirect light so that no ray, besides the on-axis ray, travels toward the traditional geometric focus point.
3A thing that is arranged radially.
辐射状东西，尤指
Example sentencesExamples
- Traces of thorns can be observed on the surface of the distal part of all rays.
- In green swordtails, the sword consists of a set of ventral fin rays that extend posteriorly beyond the caudal fin margin.
- It possesses six rays; the apical rays are long and curved.
- Clinids tend to have more spines than rays on the dorsal fin, which usually begins close to the head.
- All rays of the outwardly placed spicules are well developed.
- Most living echinoderms, like this sand dollar from Baja California, are pentameral; that is, they have fivefold symmetry, with rays or arms in fives or multiples of five.
- For example, it is possible that cellular turnover contributes to outgrowth of the fin ray.
- These rays have no relation to anything in the vertebrate limb.
- Species of Orbiculopylorum are always characterized by an outer part that is definitely separated from the inner part, and the two parts are connected mainly by internal rays.
1. 3.1Botany Any of the individual strap-shaped florets around the edge of the flower of a daisy or related plant.
  Example sentencesExamples
  The resin canal itself was excluded from fusiform rays.
  A yellow ray of flowers appears on a long fleshy hollow stem.
  In the vascular tissue of woody species, parenchyma cells include those in phloem, and the ray cells and axial parenchyma cells in xylem.
  Parenchyma rays occur throughout the xylem and phloem cells.
  The majority of the rays of the spicules are arranged radially and in a plane.
2. 3.2Zoology Each of the long slender bony supports in the fins of most bony fishes.
  〔动〕辐肋；条；鳍刺
  Example sentencesExamples
  One of the most prominent characteristics of early vertebrates is the elongate caudal fin bearing fin rays.
  The dorsal and pectoral fins have hard spines whereas the other rays are soft like the anal and caudal fins.
  The dorsal fin has 13 spines and 10 soft rays and the anal fin has 7 spines and 10 soft rays.
  Two to three scales bear a pore behind the inversion line until the lateral line ends at a caudal fin ray.
  Second, in most basal ray-finned fishes such as sturgeon and trout a single dorsal fin is present and is supported by flexible fin rays.
  The first dorsal fin has four rays, the lips are smooth and are roughly the same thickness as the diameter of the eye.
  The pelvic fin usually consists of a spine on each side and one fin ray.
3. 3.3Zoology Each radial arm of a starfish.
  〔动〕（海星的）放射形口腕，辐腕
  Example sentencesExamples
  The sequence and pattern of development of supernumerary rays differs among multiradiate starfish.

verb reɪreɪ

1no object, with adverbial of direction Spread from or as if from a central point.
呈辐射状伸出，从中心四下延展
delicate lines rayed out at each corner of her eyes
她眼角细细的皱纹密密分布。
Example sentencesExamples
- The battleships ray out over the North Sea, keeping their stations accurately apart.
- So he went to where a single blackthorn limb spired above a briary thicket, rayed with fine spikes.
Synonyms
spread out, fan out, radiate out
1. 1.1literary with object and adverbial of direction Radiate (light)
  〈诗/文〉放射，射出（光线）
  the sun rays forth its natural light into the air
  太阳朝天空中放射出自然的光线。

Phrases

ray of sunshine

informal A person who brings happiness into the lives of others.
〈非正式〉给人带来幸福的人（或物）
he hasn't exactly been a ray of sunshine up to now
Example sentencesExamples
- If you're tired of tripping over your rug rat, why not get out of the house for a few hours with your little ray of sunshine by visiting Little Tots Playgroup on Chapel Hill?
- As P G Wodehouse famously commented in Blandings Castle: ‘It is never difficult to distinguish between a Scotsman with a grievance and a ray of sunshine.’
- Kenny Anthony, with his freshly acquired movie-star public persona, was as a ray of sunshine to the inexplicably depressing atmosphere.
- She is a ray of sunshine who brightens our lives, and many others I am sure.
- They joined her brave father Aleksas Chmieliauskas, 56, and two young children, in paying respects to a woman remembered as a ray of sunshine, who's beaming smile raised the spirits of all around her.
- Scottish fiction, for all its manifest and manifold qualities, is not blessed with many rays of sunshine.
- But compared to Ann, Joanna's a ray of sunshine.
- Although you may sometimes resent the pressure of being everybody's muse or ray of sunshine, you try not to let it show.
- Cathy said: ‘Shannon was a little star and our little ray of sunshine.’
- One of these others was a friend of Rick's, a 50-something former dancer who could better be described as a ray of sunshine, George Ramos.

Derivatives

rayless

adjective ˈreɪləsˈreɪləs

1literary Dark or gloomy.
the white, rayless light of morning
Example sentencesExamples
- Senecio jacobaea exhibits geographic variation in the frequency of rayed and discoid (rayless) individuals.
- Within the tomb no veiled and weeping sorrow sits, and in the rayless gloom is crouched no shuddering fear.
- The rayless clouds dimmed, the darkening sky loomed above.
- rayless goldenrod
- it has a small horny protuberance, or rayless and immovable fin
2Botany
(of a flower) not having individual rays (florets) around the edge.
3Zoology
(of a fish's fin) lacking bony supports.

raylet

noun

Origin

Middle English: from Old French rai, based on Latin radius 'spoke, ray'. The verb dates from the late 16th century.

The ray that means ‘beam of light’ is a medieval word going back to Latin radius ‘spoke, ray’, the source of radiate (late 16th century) , radio (early 20th century), and radius (late 16th century). The term ray of sunshine for someone who brings happiness into the lives of others, dating back to the early 20th century, is often used ironically for someone who in fact spreads little cheer. Ray as a name for a fish is a different word, from Latin raia.

Rhymes

affray, agley, aka, allay, Angers, A-OK, appellation contrôlée, array, assay, astray, au fait, auto-da-fé, away, aweigh, aye, bay, belay, betray, bey, Bombay, Bordet, boulevardier, bouquet, brae, bray, café au lait, Carné, cassoulet, Cathay, chassé, chevet, chez, chiné, clay, convey, Cray, crème brûlée, crudités, cuvée, cy-pres, day, decay, deejay, dégagé, distinguée, downplay, dray, Dufay, Dushanbe, eh, embay, engagé, essay, everyday, faraway, fay, fey, flay, fray, Frey, fromage frais, gainsay, Gaye, Genet, giclee, gilet, glissé, gray, grey, halfway, hay, heigh, hey, hooray, Hubei, Hué, hurray, inveigh, jay, jeunesse dorée, José, Kay, Kaye, Klee, Kray, Lae, lay, lei, Littré, Lough Neagh, lwei, Mae, maguey, Malay, Mallarmé, Mandalay, Marseilles, may, midday, midway, mislay, misplay, Monterrey, Na-Dene, nay, né, née, neigh, Ney, noway, obey, O'Dea, okay, olé, outlay, outplay, outstay, outweigh, oyez, part-way, pay, Pei, per se, pince-nez, play, portray, pray, prey, purvey, qua, Quai d'Orsay, Rae, rangé, re, reflet, relevé, roman-à-clef, Santa Fé, say, sei, Shar Pei, shay, slay, sleigh, sley, spae, spay, Spey, splay, spray, stay, straightaway, straightway, strathspey, stray, Sui, survey, sway, Taipei, Tay, they, today, tokay, Torbay, Tournai, trait, tray, trey, two-way, ukiyo-e, underlay, way, waylay, Wei, weigh, wey, Whangarei, whey, yea

ray²

noun reɪreɪ

A broad flat marine or freshwater fish with a cartilaginous skeleton, winglike pectoral fins, and a long slender tail. Many rays have venomous spines or electric organs.
鳐
Order Batiformes: several families, including Rajidae (the skates)
Example sentencesExamples
- But such incidents are not common, he says - fishers usually cut their lines to allow the venomous rays to swim away.
- Groupers, jacks and barracuda seek refuge in the wrecks, while large marble rays cruise the sandy flats.
- And it doesn't get much more unusual than having mantra rays and starfish witnessing your wedding day.
- Otoliths range in size from one-tenth of an inch to one inch long and are found in the heads of all fishes except sharks, lampreys and rays.
- The freshwater sawfish, a ray, is related to stingrays, skates, sharks, and other fishes with cartilaginous skeletons.
- Whale sharks, manta rays and even grey whales are almost common.
- On the second dive we spot a manta ray and an enormous grouper.
- Participants will dive amidst one of Europe's largest collection of sharks, as well as 2000 other fish, rays and conger eels.
- Thornback and blond rays are most often seen, with brill, plaice, sole, flounder and even turbot on occasion.
- Tropical fish haunt its few coral reefs, and whale sharks and giant Pacific manta rays feed on its plankton.
- Turning, we saw a spotted eagle ray descend the reef wall and glide over the plateau.
- Like other rays and sharks, sawfish grow slowly, mature late, and have only a few young.
- The large lagoon and break in the reef attract many species, including dugongs, whale sharks, dolphins and manta rays.
- Even the migration pattern of species such as whale sharks, manta rays, turtles and whales has a bearing on when to go.
- Meanwhile a manta ray passed overhead like a modern stealth bomber.
- Moving on to the southern end of Koh Pi, these two fishermen landed two 5 lb queen fish, a sand ray and a barracuda.
- Thus, the tails of rays may develop barbs & stingers, with or without toxic secretions.
- On average fully half of the animals caught on long lines can't be sold and are thrown away - manta rays, sea lions, sea birds.
- No plankton means no basking sharks or manta rays but it also means exceedingly good visibility.
- They had caught a manta ray and said it was good eating.

Origin

Middle English: from Old French raie, from Latin raia.

ray³

(also re)

noun reɪreɪ

Music

1(in tonic sol-fa) the second note of a major scale.
〔乐〕（首调唱名法）大调的第二音
1. 1.1 The note D in the fixed-doh system.
  固定C大调之D音

Origin

Middle English re, representing (as an arbitrary name for the note) the first syllable of resonare, taken from a Latin hymn (see solmization).

ray¹

nounreɪrā

1Each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening.
光线；亮光
a ray of sunlight came through the window
从窗户透进一缕阳光。
Example sentencesExamples
- His hair was of a brilliant blond mingled with the rays of silver moonlight.
- This means rays of light passing through will bend toward the center of the lens on entry.
- The shadow moved forward into view, the moon's rays shining dimly upon it.
- The stars were glimmering across the night sky and the moon's rays shone upon her.
- Stunningly beautiful golden rays of sunlight crested the horizon and he smiled at the warmth.
- I can't move, I'm so enraptured by the way the last luminous rays of light dance over his glowing skin.
- There was a slight ray of moonlight visible far above his head.
- The first rays of light that passed her eyelids were very dim.
- The rays of dawn were tipping over the horizon.
- She saw the first rays of sunlight push their way up from the horizon, and sighed.
- He raises the crown into the golden rays of summer sunshine streaming through the windows.
- Light rays pass through the cornea and the lens and focus on the retina.
- The bright rays of sunshine streaming through her window were not at all comforting to her.
- She stopped when she saw the first ray of sunshine on the ground of the cave.
- The sun is out now, and the floors are lit by the rays streaming though the window.
- A Camera Obscura is when an inverted image is created by rays of light passing through a pinhole into a dark space.
- Through the breaks in the trees, Jocelyn could see the moon's ray shining down to the forest floor.
- The sun was low in the sky as the soft, warm rays hit her from the east.
- The sun was out and Cay could feel its warm rays touching his back.
- Through studying the transformation of light rays passing through glass objects, he created the effect of movement of form.
Synonyms
beam, shaft, streak, bar, pencil, finger, stream, gleam, flash, glint, glimmer, flicker, twinkle, shimmer
1. 1.1 The straight line in which light or other electromagnetic radiation travels to a given point.
  辐射状直线
  Example sentencesExamples
  Mirrors, spherical or otherwise, operate on the principle that the angle of reflection of a ray of light equals the angle at which it strikes the mirror's surface.
  Instead of taking an algebraic approach, however, Halton used a shortcut inspired by the geometry of paths traced by rays of light.
  The easiest way to describe light rays and light cones is through geometric optics.
  This was the approach of geometrical optics, which treated light as moving in straight line rays which were reflected or refracted according to simple rules.
  A light ray grazing the surface under those circumstances is bent, or refracted, upward.
2. 1.2rayswith adjective A specified form of nonluminous radiation.
  射线，辐射线；粒子线
  water reflects and intensifies UV rays
  水能反射并增强紫外线。
  Example sentencesExamples
  The sun emits visible light, heat, ultraviolet rays, radio waves, and X-rays.
  Not while the earth was constantly being bombarded by cosmic rays from interstellar space.
  They are produced in the atmosphere by the interaction of galactic cosmic rays with the atoms of the atmosphere.
  The ozone layer protects the Earth's surface from the sun's harmful ultraviolet rays.
  Water is passed through a disinfecting chamber containing a quartz mercury lamp that emits ultraviolet light rays.
  Lights that are used for SAD phototherapy must filter out harmful UV rays.
  Gamma rays are a form of electromagnetic radiation, just like visible light or x rays, but with a much higher energy.
  For sunglasses, oversized Aviators are essential to block UV rays and look cool.
  The shock heats the material in the shell to temperatures over 1 million degrees, producing bright X rays.
  A whole day of radiation of ultraviolet rays even kills the most resistant of germs.
  During the initial nuclear radiation mostly Gamma rays are emitted from the fireball.
  However, the longer wavelength rays of ultraviolet light can also cause problems.
  The radioactive glucose emits gamma rays which are then detected by the scanner.
  Surprisingly, x rays do not penetrate Earth's atmosphere, so astronomers must place x-ray telescopes in space.
  But even more important is that it absorbs carcinogenic ultra-violet rays and electromagnetic radiation.
  The gluten also shields the helpful microbes from the sun's lethal ultraviolet rays.
  Look for one that promises to shield you from a broad spectrum of ultraviolet rays.
  The HESS project deals with the detection, measuring and interpretation of high-energy cosmic rays.
  Also, some products block UVB rays, but not harmful UVA rays.
  Telescopes designed to collect and focus X rays from space provide that vision.
3. 1.3raysNorth American informal Sunlight considered in the context of sunbathing.
  〈非正式，主北美〉（日光浴用语）阳光
  Sarah's catching some rays on a beach in Cruz Bay
  Example sentencesExamples
  Before heading out to catch some rays, take a look at your checklist.
  After some glorious lazy afternoons catching rays, taking dips and grabbing soft cones… summer s over.
  Midmountain, Sunshine Grill's deck lets you catch some rays over a burger or chili.
  Two researchers specializing in the psychology of health say they've found a more productive way to wean sun worshipers from catching some rays.
  A guided hike in the morning which climbs out of the village is on offer as is the chance to catch some rays at the nearby lake.
  Find out about the villa's position and orientation so you know that you do not have go to the beach in order to catch some rays.
  So let's head on down to that booth you were talking about and then catch some rays.
  I was there five days, so got to know the soldiers who guarded me when I was fishing or just catching some rays, and the wives who were always bringing me fruit or a Coca-Cola.
  Sun, wind, sea and salt may have left their mark on hair that enjoyed days at the beach, in the pool or catching some rays.
  They like to spend a lot of their time sunning themselves, so perfect opportunity up here, up the top on a sunny day to catch some rays.
4. 1.4 An initial or slight indication of a positive or welcome quality in a time of difficulty or trouble.
  〈喻〉（困境中的）一丝（积极因素）
  if only I could see some ray of hope
  但愿我能看到一丝希望之光。
  Example sentencesExamples
  Most of all I feel really needed all of a sudden; I feel I can bring a slight ray of hope and variety to this ever more depressing world.
  Shehnaz held her daughter's hand tightly lest destiny snatch her only child - the sole ray of hope in her otherwise gloomy life.
  Faded Seaside Glamour was released in the winter, but brought rays of hope to grey, cold Britain.
  "I hope the success of our expedition will lend a ray of hope to our people who are discouraged in their daily lives."
  Although the concrete result of the proposal has yet to be seen, it nevertheless sparks a ray of hope for a peaceful solution in the troubled region.
  The commissioners comment, ‘This witness was a fresh and welcome ray of hope for the Tribunal.’
  At a time of continuous high unemployment, particularly in South Australia, statements like these were more than welcome and gave just a ray of hope.
  A ray of hope appears in the form of Mary Burke, the daughter of a heart attack victim who strikes a chord with the troubled Pierce.
  There's a bright ray of sanity on the Los Angeles Times op-ed page.
  But Dean's impressive fundraising operation offers a ray of hope.
  The ray of hope in this is the age of the author.
  And what about ‘justice is not a function of power, but rather the ray of goodness that is one's salvation’?
  One ray of hope is that the circumstances of the attack would give the Socialist Party a possible excuse for flip-flopping were they so inclined.
  Some tenants felt Christmas would not generate big profit margins for them, but others saw a ray of hope with a late-buying binge.
  That's a ray of good news for the town of Steinhatchee.
  Events in Europe offered Japan a delusory ray of hope.
  The President's farewell speech was a ray of hope.
  In this ruling Kelly found a definite ray of hope.
  ‘The only ray of hope we had was the anchor rope,’ said Mr. Podiyan.
  But when we talked, there was a small ray of hope.
  Synonyms
  glimmer, flicker, spark, glint, trace, hint, indication, suggestion, sign, scintilla, whisper
2Mathematics
Any of a set of straight lines passing through one point.
〔数〕半直线
Example sentencesExamples
- It is always wise to make a sketch of the system, including the ray bundles for the on-axis and off-axis imagery.
- All coding elements redirect light so that no ray, besides the on-axis ray, travels toward the traditional geometric focus point.
3A thing that is arranged radially.
辐射状东西，尤指
Example sentencesExamples
- These rays have no relation to anything in the vertebrate limb.
- Most living echinoderms, like this sand dollar from Baja California, are pentameral; that is, they have fivefold symmetry, with rays or arms in fives or multiples of five.
- Species of Orbiculopylorum are always characterized by an outer part that is definitely separated from the inner part, and the two parts are connected mainly by internal rays.
- Traces of thorns can be observed on the surface of the distal part of all rays.
- In green swordtails, the sword consists of a set of ventral fin rays that extend posteriorly beyond the caudal fin margin.
- Clinids tend to have more spines than rays on the dorsal fin, which usually begins close to the head.
- For example, it is possible that cellular turnover contributes to outgrowth of the fin ray.
- All rays of the outwardly placed spicules are well developed.
- It possesses six rays; the apical rays are long and curved.
1. 3.1Botany (in a composite flower head of the daisy family) an array of ray florets arranged radially around the central disc, forming the white part of the flower head of a daisy.
  〔植〕（菊科植物头状花序的）舌状花，（盘）边花
  Example sentencesExamples
  A yellow ray of flowers appears on a long fleshy hollow stem.
  In the vascular tissue of woody species, parenchyma cells include those in phloem, and the ray cells and axial parenchyma cells in xylem.
  The majority of the rays of the spicules are arranged radially and in a plane.
  The resin canal itself was excluded from fusiform rays.
  Parenchyma rays occur throughout the xylem and phloem cells.
2. 3.2Zoology Each of the long, slender bony protuberances supporting the fins of most bony fishes.
  〔动〕辐肋；条；鳍刺
  Example sentencesExamples
  The dorsal and pectoral fins have hard spines whereas the other rays are soft like the anal and caudal fins.
  Second, in most basal ray-finned fishes such as sturgeon and trout a single dorsal fin is present and is supported by flexible fin rays.
  The dorsal fin has 13 spines and 10 soft rays and the anal fin has 7 spines and 10 soft rays.
  The first dorsal fin has four rays, the lips are smooth and are roughly the same thickness as the diameter of the eye.
  Two to three scales bear a pore behind the inversion line until the lateral line ends at a caudal fin ray.
  One of the most prominent characteristics of early vertebrates is the elongate caudal fin bearing fin rays.
  The pelvic fin usually consists of a spine on each side and one fin ray.
3. 3.3Zoology Each radial arm of a starfish.
  〔动〕（海星的）放射形口腕，辐腕
  Example sentencesExamples
  The sequence and pattern of development of supernumerary rays differs among multiradiate starfish.

verbreɪrā

1no object, with adverbial of direction Spread from or as if from a central point.
呈辐射状伸出，从中心四下延展
delicate lines rayed out at each corner of her eyes
她眼角细细的皱纹密密分布。
Example sentencesExamples
- So he went to where a single blackthorn limb spired above a briary thicket, rayed with fine spikes.
- The battleships ray out over the North Sea, keeping their stations accurately apart.
Synonyms
spread out, fan out, radiate out
1. 1.1literary with object and adverbial of direction Radiate (light)
  〈诗/文〉放射，射出（光线）
  the sun rays forth its natural light into the air
  太阳朝天空中放射出自然的光线。

Phrases

ray of sunshine

informal A person or thing that brings happiness into the lives of others.
〈非正式〉给人带来幸福的人（或物）
Example sentencesExamples
- She is a ray of sunshine who brightens our lives, and many others I am sure.
- As P G Wodehouse famously commented in Blandings Castle: ‘It is never difficult to distinguish between a Scotsman with a grievance and a ray of sunshine.’
- If you're tired of tripping over your rug rat, why not get out of the house for a few hours with your little ray of sunshine by visiting Little Tots Playgroup on Chapel Hill?
- But compared to Ann, Joanna's a ray of sunshine.
- One of these others was a friend of Rick's, a 50-something former dancer who could better be described as a ray of sunshine, George Ramos.
- Cathy said: ‘Shannon was a little star and our little ray of sunshine.’
- They joined her brave father Aleksas Chmieliauskas, 56, and two young children, in paying respects to a woman remembered as a ray of sunshine, who's beaming smile raised the spirits of all around her.
- Scottish fiction, for all its manifest and manifold qualities, is not blessed with many rays of sunshine.
- Kenny Anthony, with his freshly acquired movie-star public persona, was as a ray of sunshine to the inexplicably depressing atmosphere.
- Although you may sometimes resent the pressure of being everybody's muse or ray of sunshine, you try not to let it show.

Origin

Middle English: from Old French rai, based on Latin radius ‘spoke, ray’. The verb dates from the late 16th century.

ray²

nounreɪrā

A broad flat marine or freshwater fish with a cartilaginous skeleton, winglike pectoral fins, and a long slender tail. Many rays have venomous spines or electric organs.
鳐
Order Batiformes: several families, including Rajidae (the skates)
Example sentencesExamples
- Thornback and blond rays are most often seen, with brill, plaice, sole, flounder and even turbot on occasion.
- Tropical fish haunt its few coral reefs, and whale sharks and giant Pacific manta rays feed on its plankton.
- Whale sharks, manta rays and even grey whales are almost common.
- Participants will dive amidst one of Europe's largest collection of sharks, as well as 2000 other fish, rays and conger eels.
- Meanwhile a manta ray passed overhead like a modern stealth bomber.
- Thus, the tails of rays may develop barbs & stingers, with or without toxic secretions.
- Like other rays and sharks, sawfish grow slowly, mature late, and have only a few young.
- On the second dive we spot a manta ray and an enormous grouper.
- No plankton means no basking sharks or manta rays but it also means exceedingly good visibility.
- The freshwater sawfish, a ray, is related to stingrays, skates, sharks, and other fishes with cartilaginous skeletons.
- Moving on to the southern end of Koh Pi, these two fishermen landed two 5 lb queen fish, a sand ray and a barracuda.
- But such incidents are not common, he says - fishers usually cut their lines to allow the venomous rays to swim away.
- On average fully half of the animals caught on long lines can't be sold and are thrown away - manta rays, sea lions, sea birds.
- And it doesn't get much more unusual than having mantra rays and starfish witnessing your wedding day.
- The large lagoon and break in the reef attract many species, including dugongs, whale sharks, dolphins and manta rays.
- Otoliths range in size from one-tenth of an inch to one inch long and are found in the heads of all fishes except sharks, lampreys and rays.
- Turning, we saw a spotted eagle ray descend the reef wall and glide over the plateau.
- Even the migration pattern of species such as whale sharks, manta rays, turtles and whales has a bearing on when to go.
- Groupers, jacks and barracuda seek refuge in the wrecks, while large marble rays cruise the sandy flats.
- They had caught a manta ray and said it was good eating.

Origin

Middle English: from Old French raie, from Latin raia.

ray³

nounreɪrā

variant of re

词汇	ray
释义	ray¹ noun reɪreɪ 1Each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening. 光线；亮光 a ray of sunlight came through the window 从窗户透进一缕阳光。 Example sentencesExamples I can't move, I'm so enraptured by the way the last luminous rays of light dance over his glowing skin. The bright rays of sunshine streaming through her window were not at all comforting to her. Through studying the transformation of light rays passing through glass objects, he created the effect of movement of form. Light rays pass through the cornea and the lens and focus on the retina. The sun was low in the sky as the soft, warm rays hit her from the east. There was a slight ray of moonlight visible far above his head. A Camera Obscura is when an inverted image is created by rays of light passing through a pinhole into a dark space. The sun was out and Cay could feel its warm rays touching his back. The rays of dawn were tipping over the horizon. The sun is out now, and the floors are lit by the rays streaming though the window. The stars were glimmering across the night sky and the moon's rays shone upon her. His hair was of a brilliant blond mingled with the rays of silver moonlight. She stopped when she saw the first ray of sunshine on the ground of the cave. This means rays of light passing through will bend toward the center of the lens on entry. The shadow moved forward into view, the moon's rays shining dimly upon it. Through the breaks in the trees, Jocelyn could see the moon's ray shining down to the forest floor. Stunningly beautiful golden rays of sunlight crested the horizon and he smiled at the warmth. The first rays of light that passed her eyelids were very dim. She saw the first rays of sunlight push their way up from the horizon, and sighed. He raises the crown into the golden rays of summer sunshine streaming through the windows. Synonyms beam, shaft, streak, bar, pencil, finger, stream, gleam, flash, glint, glimmer, flicker, twinkle, shimmer 1.1 The straight line in which light or other electromagnetic radiation travels to a given point. 辐射状直线 take a specific point and back-trace every ray of light that hits that point Example sentencesExamples Mirrors, spherical or otherwise, operate on the principle that the angle of reflection of a ray of light equals the angle at which it strikes the mirror's surface. This was the approach of geometrical optics, which treated light as moving in straight line rays which were reflected or refracted according to simple rules. The easiest way to describe light rays and light cones is through geometric optics. A light ray grazing the surface under those circumstances is bent, or refracted, upward. Instead of taking an algebraic approach, however, Halton used a shortcut inspired by the geometry of paths traced by rays of light. 1.2with adjective or noun modifier rays A specified form of non-luminous radiation. 射线，辐射线；粒子线 ultraviolet rays Example sentencesExamples The radioactive glucose emits gamma rays which are then detected by the scanner. The HESS project deals with the detection, measuring and interpretation of high-energy cosmic rays. Look for one that promises to shield you from a broad spectrum of ultraviolet rays. The ozone layer protects the Earth's surface from the sun's harmful ultraviolet rays. However, the longer wavelength rays of ultraviolet light can also cause problems. A whole day of radiation of ultraviolet rays even kills the most resistant of germs. Surprisingly, x rays do not penetrate Earth's atmosphere, so astronomers must place x-ray telescopes in space. Gamma rays are a form of electromagnetic radiation, just like visible light or x rays, but with a much higher energy. The sun emits visible light, heat, ultraviolet rays, radio waves, and X-rays. Water is passed through a disinfecting chamber containing a quartz mercury lamp that emits ultraviolet light rays. For sunglasses, oversized Aviators are essential to block UV rays and look cool. But even more important is that it absorbs carcinogenic ultra-violet rays and electromagnetic radiation. The shock heats the material in the shell to temperatures over 1 million degrees, producing bright X rays. Telescopes designed to collect and focus X rays from space provide that vision. Also, some products block UVB rays, but not harmful UVA rays. Not while the earth was constantly being bombarded by cosmic rays from interstellar space. During the initial nuclear radiation mostly Gamma rays are emitted from the fireball. Lights that are used for SAD phototherapy must filter out harmful UV rays. The gluten also shields the helpful microbes from the sun's lethal ultraviolet rays. They are produced in the atmosphere by the interaction of galactic cosmic rays with the atoms of the atmosphere. 1.3raysNorth American informal Sunlight considered in the context of sunbathing. 〈非正式，主北美〉（日光浴用语）阳光 catch some rays on a sandy beach 在隐蔽的沙滩上晒太阳。 Example sentencesExamples So let's head on down to that booth you were talking about and then catch some rays. Find out about the villa's position and orientation so you know that you do not have go to the beach in order to catch some rays. I was there five days, so got to know the soldiers who guarded me when I was fishing or just catching some rays, and the wives who were always bringing me fruit or a Coca-Cola. After some glorious lazy afternoons catching rays, taking dips and grabbing soft cones… summer s over. A guided hike in the morning which climbs out of the village is on offer as is the chance to catch some rays at the nearby lake. Two researchers specializing in the psychology of health say they've found a more productive way to wean sun worshipers from catching some rays. Before heading out to catch some rays, take a look at your checklist. They like to spend a lot of their time sunning themselves, so perfect opportunity up here, up the top on a sunny day to catch some rays. Sun, wind, sea and salt may have left their mark on hair that enjoyed days at the beach, in the pool or catching some rays. Midmountain, Sunshine Grill's deck lets you catch some rays over a burger or chili. 1.4 An initial or slight indication of a positive or welcome quality in a time of difficulty or trouble. 〈喻〉（困境中的）一丝（积极因素） if only I could see some ray of hope 但愿我能看到一丝希望之光。 Example sentencesExamples The President's farewell speech was a ray of hope. Although the concrete result of the proposal has yet to be seen, it nevertheless sparks a ray of hope for a peaceful solution in the troubled region. But Dean's impressive fundraising operation offers a ray of hope. The ray of hope in this is the age of the author. Shehnaz held her daughter's hand tightly lest destiny snatch her only child - the sole ray of hope in her otherwise gloomy life. One ray of hope is that the circumstances of the attack would give the Socialist Party a possible excuse for flip-flopping were they so inclined. "I hope the success of our expedition will lend a ray of hope to our people who are discouraged in their daily lives." At a time of continuous high unemployment, particularly in South Australia, statements like these were more than welcome and gave just a ray of hope. The commissioners comment, ‘This witness was a fresh and welcome ray of hope for the Tribunal.’ In this ruling Kelly found a definite ray of hope. Most of all I feel really needed all of a sudden; I feel I can bring a slight ray of hope and variety to this ever more depressing world. There's a bright ray of sanity on the Los Angeles Times op-ed page. That's a ray of good news for the town of Steinhatchee. And what about ‘justice is not a function of power, but rather the ray of goodness that is one's salvation’? A ray of hope appears in the form of Mary Burke, the daughter of a heart attack victim who strikes a chord with the troubled Pierce. But when we talked, there was a small ray of hope. ‘The only ray of hope we had was the anchor rope,’ said Mr. Podiyan. Events in Europe offered Japan a delusory ray of hope. Some tenants felt Christmas would not generate big profit margins for them, but others saw a ray of hope with a late-buying binge. Faded Seaside Glamour was released in the winter, but brought rays of hope to grey, cold Britain. Synonyms glimmer, flicker, spark, glint, trace, hint, indication, suggestion, sign, scintilla, whisper 2Mathematics Any of a set of straight lines passing through one point. 〔数〕半直线 the ray that runs from the centre of the circle to the point of tangency Example sentencesExamples It is always wise to make a sketch of the system, including the ray bundles for the on-axis and off-axis imagery. All coding elements redirect light so that no ray, besides the on-axis ray, travels toward the traditional geometric focus point. 3A thing that is arranged radially. 辐射状东西，尤指 Example sentencesExamples Traces of thorns can be observed on the surface of the distal part of all rays. In green swordtails, the sword consists of a set of ventral fin rays that extend posteriorly beyond the caudal fin margin. It possesses six rays; the apical rays are long and curved. Clinids tend to have more spines than rays on the dorsal fin, which usually begins close to the head. All rays of the outwardly placed spicules are well developed. Most living echinoderms, like this sand dollar from Baja California, are pentameral; that is, they have fivefold symmetry, with rays or arms in fives or multiples of five. For example, it is possible that cellular turnover contributes to outgrowth of the fin ray. These rays have no relation to anything in the vertebrate limb. Species of Orbiculopylorum are always characterized by an outer part that is definitely separated from the inner part, and the two parts are connected mainly by internal rays. 3.1Botany Any of the individual strap-shaped florets around the edge of the flower of a daisy or related plant. Example sentencesExamples The resin canal itself was excluded from fusiform rays. A yellow ray of flowers appears on a long fleshy hollow stem. In the vascular tissue of woody species, parenchyma cells include those in phloem, and the ray cells and axial parenchyma cells in xylem. Parenchyma rays occur throughout the xylem and phloem cells. The majority of the rays of the spicules are arranged radially and in a plane. 3.2Zoology Each of the long slender bony supports in the fins of most bony fishes. 〔动〕辐肋；条；鳍刺 Example sentencesExamples One of the most prominent characteristics of early vertebrates is the elongate caudal fin bearing fin rays. The dorsal and pectoral fins have hard spines whereas the other rays are soft like the anal and caudal fins. The dorsal fin has 13 spines and 10 soft rays and the anal fin has 7 spines and 10 soft rays. Two to three scales bear a pore behind the inversion line until the lateral line ends at a caudal fin ray. Second, in most basal ray-finned fishes such as sturgeon and trout a single dorsal fin is present and is supported by flexible fin rays. The first dorsal fin has four rays, the lips are smooth and are roughly the same thickness as the diameter of the eye. The pelvic fin usually consists of a spine on each side and one fin ray. 3.3Zoology Each radial arm of a starfish. 〔动〕（海星的）放射形口腕，辐腕 Example sentencesExamples The sequence and pattern of development of supernumerary rays differs among multiradiate starfish. verb reɪreɪ 1no object, with adverbial of direction Spread from or as if from a central point. 呈辐射状伸出，从中心四下延展 delicate lines rayed out at each corner of her eyes 她眼角细细的皱纹密密分布。 Example sentencesExamples The battleships ray out over the North Sea, keeping their stations accurately apart. So he went to where a single blackthorn limb spired above a briary thicket, rayed with fine spikes. Synonyms spread out, fan out, radiate out 1.1literary with object and adverbial of direction Radiate (light) 〈诗/文〉放射，射出（光线） the sun rays forth its natural light into the air 太阳朝天空中放射出自然的光线。 Phrases ray of sunshine informal A person who brings happiness into the lives of others. 〈非正式〉给人带来幸福的人（或物） he hasn't exactly been a ray of sunshine up to now Example sentencesExamples If you're tired of tripping over your rug rat, why not get out of the house for a few hours with your little ray of sunshine by visiting Little Tots Playgroup on Chapel Hill? As P G Wodehouse famously commented in Blandings Castle: ‘It is never difficult to distinguish between a Scotsman with a grievance and a ray of sunshine.’ Kenny Anthony, with his freshly acquired movie-star public persona, was as a ray of sunshine to the inexplicably depressing atmosphere. She is a ray of sunshine who brightens our lives, and many others I am sure. They joined her brave father Aleksas Chmieliauskas, 56, and two young children, in paying respects to a woman remembered as a ray of sunshine, who's beaming smile raised the spirits of all around her. Scottish fiction, for all its manifest and manifold qualities, is not blessed with many rays of sunshine. But compared to Ann, Joanna's a ray of sunshine. Although you may sometimes resent the pressure of being everybody's muse or ray of sunshine, you try not to let it show. Cathy said: ‘Shannon was a little star and our little ray of sunshine.’ One of these others was a friend of Rick's, a 50-something former dancer who could better be described as a ray of sunshine, George Ramos. Derivatives rayless adjective ˈreɪləsˈreɪləs 1literary Dark or gloomy. the white, rayless light of morning Example sentencesExamples Senecio jacobaea exhibits geographic variation in the frequency of rayed and discoid (rayless) individuals. Within the tomb no veiled and weeping sorrow sits, and in the rayless gloom is crouched no shuddering fear. The rayless clouds dimmed, the darkening sky loomed above. rayless goldenrod it has a small horny protuberance, or rayless and immovable fin 2Botany (of a flower) not having individual rays (florets) around the edge. 3Zoology (of a fish's fin) lacking bony supports. raylet noun Origin Middle English: from Old French rai, based on Latin radius 'spoke, ray'. The verb dates from the late 16th century. The ray that means ‘beam of light’ is a medieval word going back to Latin radius ‘spoke, ray’, the source of radiate (late 16th century) , radio (early 20th century), and radius (late 16th century). The term ray of sunshine for someone who brings happiness into the lives of others, dating back to the early 20th century, is often used ironically for someone who in fact spreads little cheer. Ray as a name for a fish is a different word, from Latin raia. Rhymes affray, agley, aka, allay, Angers, A-OK, appellation contrôlée, array, assay, astray, au fait, auto-da-fé, away, aweigh, aye, bay, belay, betray, bey, Bombay, Bordet, boulevardier, bouquet, brae, bray, café au lait, Carné, cassoulet, Cathay, chassé, chevet, chez, chiné, clay, convey, Cray, crème brûlée, crudités, cuvée, cy-pres, day, decay, deejay, dégagé, distinguée, downplay, dray, Dufay, Dushanbe, eh, embay, engagé, essay, everyday, faraway, fay, fey, flay, fray, Frey, fromage frais, gainsay, Gaye, Genet, giclee, gilet, glissé, gray, grey, halfway, hay, heigh, hey, hooray, Hubei, Hué, hurray, inveigh, jay, jeunesse dorée, José, Kay, Kaye, Klee, Kray, Lae, lay, lei, Littré, Lough Neagh, lwei, Mae, maguey, Malay, Mallarmé, Mandalay, Marseilles, may, midday, midway, mislay, misplay, Monterrey, Na-Dene, nay, né, née, neigh, Ney, noway, obey, O'Dea, okay, olé, outlay, outplay, outstay, outweigh, oyez, part-way, pay, Pei, per se, pince-nez, play, portray, pray, prey, purvey, qua, Quai d'Orsay, Rae, rangé, re, reflet, relevé, roman-à-clef, Santa Fé, say, sei, Shar Pei, shay, slay, sleigh, sley, spae, spay, Spey, splay, spray, stay, straightaway, straightway, strathspey, stray, Sui, survey, sway, Taipei, Tay, they, today, tokay, Torbay, Tournai, trait, tray, trey, two-way, ukiyo-e, underlay, way, waylay, Wei, weigh, wey, Whangarei, whey, yea ray² noun reɪreɪ A broad flat marine or freshwater fish with a cartilaginous skeleton, winglike pectoral fins, and a long slender tail. Many rays have venomous spines or electric organs. 鳐 Order Batiformes: several families, including Rajidae (the skates) Example sentencesExamples But such incidents are not common, he says - fishers usually cut their lines to allow the venomous rays to swim away. Groupers, jacks and barracuda seek refuge in the wrecks, while large marble rays cruise the sandy flats. And it doesn't get much more unusual than having mantra rays and starfish witnessing your wedding day. Otoliths range in size from one-tenth of an inch to one inch long and are found in the heads of all fishes except sharks, lampreys and rays. The freshwater sawfish, a ray, is related to stingrays, skates, sharks, and other fishes with cartilaginous skeletons. Whale sharks, manta rays and even grey whales are almost common. On the second dive we spot a manta ray and an enormous grouper. Participants will dive amidst one of Europe's largest collection of sharks, as well as 2000 other fish, rays and conger eels. Thornback and blond rays are most often seen, with brill, plaice, sole, flounder and even turbot on occasion. Tropical fish haunt its few coral reefs, and whale sharks and giant Pacific manta rays feed on its plankton. Turning, we saw a spotted eagle ray descend the reef wall and glide over the plateau. Like other rays and sharks, sawfish grow slowly, mature late, and have only a few young. The large lagoon and break in the reef attract many species, including dugongs, whale sharks, dolphins and manta rays. Even the migration pattern of species such as whale sharks, manta rays, turtles and whales has a bearing on when to go. Meanwhile a manta ray passed overhead like a modern stealth bomber. Moving on to the southern end of Koh Pi, these two fishermen landed two 5 lb queen fish, a sand ray and a barracuda. Thus, the tails of rays may develop barbs & stingers, with or without toxic secretions. On average fully half of the animals caught on long lines can't be sold and are thrown away - manta rays, sea lions, sea birds. No plankton means no basking sharks or manta rays but it also means exceedingly good visibility. They had caught a manta ray and said it was good eating. Origin Middle English: from Old French raie, from Latin raia. ray³ (also re) noun reɪreɪ Music 1(in tonic sol-fa) the second note of a major scale. 〔乐〕（首调唱名法）大调的第二音 1.1 The note D in the fixed-doh system. 固定C大调之D音 Origin Middle English re, representing (as an arbitrary name for the note) the first syllable of resonare, taken from a Latin hymn (see solmization). noun.1 phr. noun.2 noun.3 ray¹ nounreɪrā 1Each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening. 光线；亮光 a ray of sunlight came through the window 从窗户透进一缕阳光。 Example sentencesExamples His hair was of a brilliant blond mingled with the rays of silver moonlight. This means rays of light passing through will bend toward the center of the lens on entry. The shadow moved forward into view, the moon's rays shining dimly upon it. The stars were glimmering across the night sky and the moon's rays shone upon her. Stunningly beautiful golden rays of sunlight crested the horizon and he smiled at the warmth. I can't move, I'm so enraptured by the way the last luminous rays of light dance over his glowing skin. There was a slight ray of moonlight visible far above his head. The first rays of light that passed her eyelids were very dim. The rays of dawn were tipping over the horizon. She saw the first rays of sunlight push their way up from the horizon, and sighed. He raises the crown into the golden rays of summer sunshine streaming through the windows. Light rays pass through the cornea and the lens and focus on the retina. The bright rays of sunshine streaming through her window were not at all comforting to her. She stopped when she saw the first ray of sunshine on the ground of the cave. The sun is out now, and the floors are lit by the rays streaming though the window. A Camera Obscura is when an inverted image is created by rays of light passing through a pinhole into a dark space. Through the breaks in the trees, Jocelyn could see the moon's ray shining down to the forest floor. The sun was low in the sky as the soft, warm rays hit her from the east. The sun was out and Cay could feel its warm rays touching his back. Through studying the transformation of light rays passing through glass objects, he created the effect of movement of form. Synonyms beam, shaft, streak, bar, pencil, finger, stream, gleam, flash, glint, glimmer, flicker, twinkle, shimmer 1.1 The straight line in which light or other electromagnetic radiation travels to a given point. 辐射状直线 Example sentencesExamples Mirrors, spherical or otherwise, operate on the principle that the angle of reflection of a ray of light equals the angle at which it strikes the mirror's surface. Instead of taking an algebraic approach, however, Halton used a shortcut inspired by the geometry of paths traced by rays of light. The easiest way to describe light rays and light cones is through geometric optics. This was the approach of geometrical optics, which treated light as moving in straight line rays which were reflected or refracted according to simple rules. A light ray grazing the surface under those circumstances is bent, or refracted, upward. 1.2rayswith adjective A specified form of nonluminous radiation. 射线，辐射线；粒子线 water reflects and intensifies UV rays 水能反射并增强紫外线。 Example sentencesExamples The sun emits visible light, heat, ultraviolet rays, radio waves, and X-rays. Not while the earth was constantly being bombarded by cosmic rays from interstellar space. They are produced in the atmosphere by the interaction of galactic cosmic rays with the atoms of the atmosphere. The ozone layer protects the Earth's surface from the sun's harmful ultraviolet rays. Water is passed through a disinfecting chamber containing a quartz mercury lamp that emits ultraviolet light rays. Lights that are used for SAD phototherapy must filter out harmful UV rays. Gamma rays are a form of electromagnetic radiation, just like visible light or x rays, but with a much higher energy. For sunglasses, oversized Aviators are essential to block UV rays and look cool. The shock heats the material in the shell to temperatures over 1 million degrees, producing bright X rays. A whole day of radiation of ultraviolet rays even kills the most resistant of germs. During the initial nuclear radiation mostly Gamma rays are emitted from the fireball. However, the longer wavelength rays of ultraviolet light can also cause problems. The radioactive glucose emits gamma rays which are then detected by the scanner. Surprisingly, x rays do not penetrate Earth's atmosphere, so astronomers must place x-ray telescopes in space. But even more important is that it absorbs carcinogenic ultra-violet rays and electromagnetic radiation. The gluten also shields the helpful microbes from the sun's lethal ultraviolet rays. Look for one that promises to shield you from a broad spectrum of ultraviolet rays. The HESS project deals with the detection, measuring and interpretation of high-energy cosmic rays. Also, some products block UVB rays, but not harmful UVA rays. Telescopes designed to collect and focus X rays from space provide that vision. 1.3raysNorth American informal Sunlight considered in the context of sunbathing. 〈非正式，主北美〉（日光浴用语）阳光 Sarah's catching some rays on a beach in Cruz Bay Example sentencesExamples Before heading out to catch some rays, take a look at your checklist. After some glorious lazy afternoons catching rays, taking dips and grabbing soft cones… summer s over. Midmountain, Sunshine Grill's deck lets you catch some rays over a burger or chili. Two researchers specializing in the psychology of health say they've found a more productive way to wean sun worshipers from catching some rays. A guided hike in the morning which climbs out of the village is on offer as is the chance to catch some rays at the nearby lake. Find out about the villa's position and orientation so you know that you do not have go to the beach in order to catch some rays. So let's head on down to that booth you were talking about and then catch some rays. I was there five days, so got to know the soldiers who guarded me when I was fishing or just catching some rays, and the wives who were always bringing me fruit or a Coca-Cola. Sun, wind, sea and salt may have left their mark on hair that enjoyed days at the beach, in the pool or catching some rays. They like to spend a lot of their time sunning themselves, so perfect opportunity up here, up the top on a sunny day to catch some rays. 1.4 An initial or slight indication of a positive or welcome quality in a time of difficulty or trouble. 〈喻〉（困境中的）一丝（积极因素） if only I could see some ray of hope 但愿我能看到一丝希望之光。 Example sentencesExamples Most of all I feel really needed all of a sudden; I feel I can bring a slight ray of hope and variety to this ever more depressing world. Shehnaz held her daughter's hand tightly lest destiny snatch her only child - the sole ray of hope in her otherwise gloomy life. Faded Seaside Glamour was released in the winter, but brought rays of hope to grey, cold Britain. "I hope the success of our expedition will lend a ray of hope to our people who are discouraged in their daily lives." Although the concrete result of the proposal has yet to be seen, it nevertheless sparks a ray of hope for a peaceful solution in the troubled region. The commissioners comment, ‘This witness was a fresh and welcome ray of hope for the Tribunal.’ At a time of continuous high unemployment, particularly in South Australia, statements like these were more than welcome and gave just a ray of hope. A ray of hope appears in the form of Mary Burke, the daughter of a heart attack victim who strikes a chord with the troubled Pierce. There's a bright ray of sanity on the Los Angeles Times op-ed page. But Dean's impressive fundraising operation offers a ray of hope. The ray of hope in this is the age of the author. And what about ‘justice is not a function of power, but rather the ray of goodness that is one's salvation’? One ray of hope is that the circumstances of the attack would give the Socialist Party a possible excuse for flip-flopping were they so inclined. Some tenants felt Christmas would not generate big profit margins for them, but others saw a ray of hope with a late-buying binge. That's a ray of good news for the town of Steinhatchee. Events in Europe offered Japan a delusory ray of hope. The President's farewell speech was a ray of hope. In this ruling Kelly found a definite ray of hope. ‘The only ray of hope we had was the anchor rope,’ said Mr. Podiyan. But when we talked, there was a small ray of hope. Synonyms glimmer, flicker, spark, glint, trace, hint, indication, suggestion, sign, scintilla, whisper 2Mathematics Any of a set of straight lines passing through one point. 〔数〕半直线 Example sentencesExamples It is always wise to make a sketch of the system, including the ray bundles for the on-axis and off-axis imagery. All coding elements redirect light so that no ray, besides the on-axis ray, travels toward the traditional geometric focus point. 3A thing that is arranged radially. 辐射状东西，尤指 Example sentencesExamples These rays have no relation to anything in the vertebrate limb. Most living echinoderms, like this sand dollar from Baja California, are pentameral; that is, they have fivefold symmetry, with rays or arms in fives or multiples of five. Species of Orbiculopylorum are always characterized by an outer part that is definitely separated from the inner part, and the two parts are connected mainly by internal rays. Traces of thorns can be observed on the surface of the distal part of all rays. In green swordtails, the sword consists of a set of ventral fin rays that extend posteriorly beyond the caudal fin margin. Clinids tend to have more spines than rays on the dorsal fin, which usually begins close to the head. For example, it is possible that cellular turnover contributes to outgrowth of the fin ray. All rays of the outwardly placed spicules are well developed. It possesses six rays; the apical rays are long and curved. 3.1Botany (in a composite flower head of the daisy family) an array of ray florets arranged radially around the central disc, forming the white part of the flower head of a daisy. 〔植〕（菊科植物头状花序的）舌状花，（盘）边花 Example sentencesExamples A yellow ray of flowers appears on a long fleshy hollow stem. In the vascular tissue of woody species, parenchyma cells include those in phloem, and the ray cells and axial parenchyma cells in xylem. The majority of the rays of the spicules are arranged radially and in a plane. The resin canal itself was excluded from fusiform rays. Parenchyma rays occur throughout the xylem and phloem cells. 3.2Zoology Each of the long, slender bony protuberances supporting the fins of most bony fishes. 〔动〕辐肋；条；鳍刺 Example sentencesExamples The dorsal and pectoral fins have hard spines whereas the other rays are soft like the anal and caudal fins. Second, in most basal ray-finned fishes such as sturgeon and trout a single dorsal fin is present and is supported by flexible fin rays. The dorsal fin has 13 spines and 10 soft rays and the anal fin has 7 spines and 10 soft rays. The first dorsal fin has four rays, the lips are smooth and are roughly the same thickness as the diameter of the eye. Two to three scales bear a pore behind the inversion line until the lateral line ends at a caudal fin ray. One of the most prominent characteristics of early vertebrates is the elongate caudal fin bearing fin rays. The pelvic fin usually consists of a spine on each side and one fin ray. 3.3Zoology Each radial arm of a starfish. 〔动〕（海星的）放射形口腕，辐腕 Example sentencesExamples The sequence and pattern of development of supernumerary rays differs among multiradiate starfish. verbreɪrā 1no object, with adverbial of direction Spread from or as if from a central point. 呈辐射状伸出，从中心四下延展 delicate lines rayed out at each corner of her eyes 她眼角细细的皱纹密密分布。 Example sentencesExamples So he went to where a single blackthorn limb spired above a briary thicket, rayed with fine spikes. The battleships ray out over the North Sea, keeping their stations accurately apart. Synonyms spread out, fan out, radiate out 1.1literary with object and adverbial of direction Radiate (light) 〈诗/文〉放射，射出（光线） the sun rays forth its natural light into the air 太阳朝天空中放射出自然的光线。 Phrases ray of sunshine informal A person or thing that brings happiness into the lives of others. 〈非正式〉给人带来幸福的人（或物） Example sentencesExamples She is a ray of sunshine who brightens our lives, and many others I am sure. As P G Wodehouse famously commented in Blandings Castle: ‘It is never difficult to distinguish between a Scotsman with a grievance and a ray of sunshine.’ If you're tired of tripping over your rug rat, why not get out of the house for a few hours with your little ray of sunshine by visiting Little Tots Playgroup on Chapel Hill? But compared to Ann, Joanna's a ray of sunshine. One of these others was a friend of Rick's, a 50-something former dancer who could better be described as a ray of sunshine, George Ramos. Cathy said: ‘Shannon was a little star and our little ray of sunshine.’ They joined her brave father Aleksas Chmieliauskas, 56, and two young children, in paying respects to a woman remembered as a ray of sunshine, who's beaming smile raised the spirits of all around her. Scottish fiction, for all its manifest and manifold qualities, is not blessed with many rays of sunshine. Kenny Anthony, with his freshly acquired movie-star public persona, was as a ray of sunshine to the inexplicably depressing atmosphere. Although you may sometimes resent the pressure of being everybody's muse or ray of sunshine, you try not to let it show. Origin Middle English: from Old French rai, based on Latin radius ‘spoke, ray’. The verb dates from the late 16th century. ray² nounreɪrā A broad flat marine or freshwater fish with a cartilaginous skeleton, winglike pectoral fins, and a long slender tail. Many rays have venomous spines or electric organs. 鳐 Order Batiformes: several families, including Rajidae (the skates) Example sentencesExamples Thornback and blond rays are most often seen, with brill, plaice, sole, flounder and even turbot on occasion. Tropical fish haunt its few coral reefs, and whale sharks and giant Pacific manta rays feed on its plankton. Whale sharks, manta rays and even grey whales are almost common. Participants will dive amidst one of Europe's largest collection of sharks, as well as 2000 other fish, rays and conger eels. Meanwhile a manta ray passed overhead like a modern stealth bomber. Thus, the tails of rays may develop barbs & stingers, with or without toxic secretions. Like other rays and sharks, sawfish grow slowly, mature late, and have only a few young. On the second dive we spot a manta ray and an enormous grouper. No plankton means no basking sharks or manta rays but it also means exceedingly good visibility. The freshwater sawfish, a ray, is related to stingrays, skates, sharks, and other fishes with cartilaginous skeletons. Moving on to the southern end of Koh Pi, these two fishermen landed two 5 lb queen fish, a sand ray and a barracuda. But such incidents are not common, he says - fishers usually cut their lines to allow the venomous rays to swim away. On average fully half of the animals caught on long lines can't be sold and are thrown away - manta rays, sea lions, sea birds. And it doesn't get much more unusual than having mantra rays and starfish witnessing your wedding day. The large lagoon and break in the reef attract many species, including dugongs, whale sharks, dolphins and manta rays. Otoliths range in size from one-tenth of an inch to one inch long and are found in the heads of all fishes except sharks, lampreys and rays. Turning, we saw a spotted eagle ray descend the reef wall and glide over the plateau. Even the migration pattern of species such as whale sharks, manta rays, turtles and whales has a bearing on when to go. Groupers, jacks and barracuda seek refuge in the wrecks, while large marble rays cruise the sandy flats. They had caught a manta ray and said it was good eating. Origin Middle English: from Old French raie, from Latin raia. ray³ nounreɪrā variant of re noun.1 phr. noun.2 noun.3
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