, Blue

1.蓝色的；天蓝色的；蔚蓝色的having the colour of a clear sky or the sea/ocean on a clear day

2.（由于冷或呼吸困难）发青的，青紫的looking slightly blue in colour because the person is cold or cannot breathe easily

3.(informal)忧郁的；悲伤的sad

4.（电影、玩笑或故事）色情的，黄色的films/movies, jokes or stories that areblue are about sex

5.（美国地区）蓝色的（支持民主党候选人多于支持共和党候选人）(of an area in the US) having more people who vote for the Democratic candidate than the Republican one

do sth till you are blue in the face

徒然拼命地干；徒劳无功to try to do sth as hard and as long as you possibly can but without success

1.[c][u]蓝色；天蓝色；蔚蓝色the colour of a clear sky or the sea/ocean on a clear day

out of the blue

出乎意料；突然；晴天霹雳unexpectedly; without warning

1.青,蓝,蓝色的,天蓝色的;(脸色)发灰[青]的,(皮毛等)青灰色的

2.阴郁的,忧郁的,沮丧的,悲观的;(气候)阴凉的;(希望等)暗淡的,没精打采的

3.穿蓝衣服的;以蓝色为标志的;〈美〉(南北战争中)联邦军的,北军的

4.淫猥的,猥亵的,下流的;渎神的

5.〈英〉清教徒的,禁律严厉的

6.〈口〉(女子)有文艺趣味的,有学问的(女子)

1.青色,蓝色;碧空,苍天,青天;海,沧海

2.〈口〉忧郁,忧闷,不乐,沮丧

3.蓝色颜料[染料](等);蓝布;穿蓝制服的人〔美国〕(南北战争中的)联邦军,北军;(美国耶鲁 (Yale), 英国剑桥,牛津大学的)大学色标,大学体育队选手

4.英保守党员

5.女学者

6.一种感伤的黑人民歌;布鲁斯舞(曲)

1.把...染成天青色〔蓝色〕,给...上蓝;〈口〉浪费,滥花(金钱)

1.something that is blue is the same color as the sky on a clear sunny day. If something is similar to this color, you can say that it is a bluish color

2.feeling slightly sad

3.dealing with sex in a way that some people find offensive

1.the color of the sky on a clear sunny day

2.a person who has played for Oxford University or Cambridge University in a sport