Definition of head-scratcher in English:

head-scratcher

noun ˈhɛdˌskratʃə

1A person who scratches his or her head, especially in puzzlement or thought; (hence) a perplexed or thoughtful person. Compare to scratch one's head.
2Informal (originally US). A perplexing problem or question; something which causes bafflement or puzzlement.
3An implement for scratching the head. Now chiefly historical.

Origin

Early 17th century; earliest use found in Barten Holyday (1593–1661), Church of England clergyman and poet. From head + scratcher.

Definition of head-scratcher in US English:

head-scratcher

nounˈhɛdˌskratʃə

1A person who scratches his or her head, especially in puzzlement or thought; (hence) a perplexed or thoughtful person. Compare to scratch one's head.
2Informal (originally US). A perplexing problem or question; something which causes bafflement or puzzlement.
3An implement for scratching the head. Now chiefly historical.

Origin

Early 17th century; earliest use found in Barten Holyday (1593–1661), Church of England clergyman and poet. From head + scratcher.

词汇	head-scratcher
释义	Definition of head-scratcher in English: head-scratcher noun ˈhɛdˌskratʃə 1A person who scratches his or her head, especially in puzzlement or thought; (hence) a perplexed or thoughtful person. Compare to scratch one's head. 2Informal (originally US). A perplexing problem or question; something which causes bafflement or puzzlement. 3An implement for scratching the head. Now chiefly historical. Origin Early 17th century; earliest use found in Barten Holyday (1593–1661), Church of England clergyman and poet. From head + scratcher. Definition of head-scratcher in US English: head-scratcher nounˈhɛdˌskratʃə 1A person who scratches his or her head, especially in puzzlement or thought; (hence) a perplexed or thoughtful person. Compare to scratch one's head. 2Informal (originally US). A perplexing problem or question; something which causes bafflement or puzzlement. 3An implement for scratching the head. Now chiefly historical. Origin Early 17th century; earliest use found in Barten Holyday (1593–1661), Church of England clergyman and poet. From head + scratcher.
随便看	be incubating sth be in debit be in debit be in debt be indebted for be indebted (to) be in debt to the tune of be indecisive be indecisive/irresolute be in decline be in demand be indentured to be indentured to be indicative of be in difficulties be indignant be in dire straits be indisposed to be indisputable be in dispute be in dispute/contention be in distress be indolent be industrious be in effect