blue

adj.

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
   1. piercing blue eyes
      锐利的蓝眼睛
   2. a blue shirt
      蓝色衬衫
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
   1. Her hands were blue with cold.
      她的双手冻得发青。
3. 忧郁的；悲伤的
   sad
   1. He'd been feeling blue all week.
      他整个星期都郁郁不乐。
4. （电影、玩笑或故事）色情的，黄色的
   films/movies, jokes or stories that are blue are about sex
   1. a blue movie
      色情片

noun

1. 蓝色；天蓝色；蔚蓝色
   the colour of a clear sky or the sea/ocean on a clear day
   1. bright/dark/light/pale blue
      明亮的 / 深 / 浅 / 淡蓝色
   2. The room was decorated in vibrant blues and yellows.
      房间内部以鲜明的蓝色和黄色作为装饰。
   3. She was dressed in blue.
      她身着蓝色服装。
2. 蓝色荣誉者（牛津或剑桥大学的校队运动员）；蓝色荣誉的头衔
   a person who has played a particular sport for Oxford or Cambridge University; a title given to them
3. 错误；失误
   a mistake
4. 红发人
   a name for a person with red hair
5. 打架；打斗；斗殴
   a fight

1. COLOUR 蓝色；天蓝色
   Something that is blue is the colour of the sky on a sunny day.
   1. There were swallows in the cloudless blue sky...
      燕子在万里无云的蓝天飞翔。
   2. She fixed her pale blue eyes on her father's.
      她淡蓝色的眼睛紧紧盯着她父亲的双眼。
   3. ...colourful blues and reds.
      绚丽的蓝色和红色
2. N-PLURAL 蓝调音乐，布鲁斯音乐（源于美国南部黑人音乐家，节奏缓慢，旋律感强）
   The blues is a type of music which was developed by African American musicians in the southern United States. It is characterized by a slow tempo and a strong rhythm.
   1. His singing really does have the depth and the emotional range of the blues.
      他的歌声确实颇有布鲁斯音乐的内蕴和情感深度。
   2. ...the blues bars of Chicago.
      芝加哥的蓝调酒吧
3. N-PLURAL 忧郁；沮丧；悲伤
   If you have got the blues, you feel sad and depressed.
   1. Interfering in-laws are the prime sources of the blues.
      喜欢指手画脚的姻亲最让人头疼。
4. ADJ-GRADED 忧郁的；沮丧的；悲伤的
   If you are feeling blue, you are feeling sad or depressed, often when there is no particular reason.
   1. There's no earthly reason for me to feel so blue.
      我也说不出来为什么这么沮丧。
5. （剑桥或牛津大学的）校队运动员，蓝色荣誉者
   A Cambridge blue or an Oxford blue is a man or woman who has played for Cambridge or Oxford University in a particular sport.
6. ADJ 色情的；黄色的
   Blue films, stories, or jokes are about sex.
   1. ...a secret stash of porn mags and blue movies.
      偷偷藏起来的一堆色情杂志和黄色影碟
7. PHRASE 突然；出乎意料地
   If something happens out of the blue, it happens unexpectedly.
   1. One of them wrote to us out of the blue several years later.
      数年后他们中的一人突然给我们写了一封信。
8. bolt from the blue → see: bolt

1. I saw a man in a blue jacket thirty metres ahead of me
   我看见在我前面30米处有一个身穿蓝色夹克的男人。
2. Bud's nose was still black and blue.
   巴德的鼻子还是青一块紫一块的。
3. He blew a ring of blue smoke.
   他吐出了蓝色的烟圈。
4. There were swallows in the cloudless blue sky
   燕子在万里无云的蓝天飞翔。
5. She fixed her pale blue eyes on her father's.
   她淡蓝色的眼睛紧紧盯着她父亲的双眼。
6. His singing really does have the depth and the emotional range of the blues.
   他的歌声确实颇有布鲁斯音乐的内蕴和情感深度。
7. Interfering in-laws are the prime sources of the blues.
   喜欢指手画脚的姻亲最让人头疼。
8. There's no earthly reason for me to feel so blue.
   我也说不出来为什么这么沮丧。
9. One of them wrote to us out of the blue several years later.
   数年后他们中的一人突然给我们写了一封信。
10. She wore blue tracksuit bottoms.
    她穿了一件蓝色田径裤。
11. Coral can be yellow, blue, or green.
    珊瑚有黄色的、蓝色的或绿色的。
12. He was wearing blue jeans and checked shirt.
    他穿着蓝色牛仔裤和格子衬衫。
13. He has clear blue eyes and a dazzling smile.
    他有一双明亮的蓝眼睛和一脸灿烂的微笑。
14. Both birds had a dark blue crest.
    两种鸟都长着深蓝色的羽冠。
15. She was wearing a dark blue dress.
    她穿着一件深蓝色的礼服。
16. She was dressed in blue denims.
    她穿了一条蓝色的牛仔裤。
17. The stern was embellished with carvings in red and blue
    船尾饰有红色和蓝色的雕刻图案。
18. The shorts had blue embroidery over the pockets
    这条短裤的口袋上有蓝色刺绣。
19. Queen Mary started the fashion for blue and white china in England
    玛丽女王开启了青花瓷在英格兰的流行风尚。
20. A figure in a blue dress appeared in the doorway.
    一个穿着蓝色连衣裙的身影出现在门口。
21. A jay emerged from the juniper bush in a flash of blue feathers.
    只见亮闪闪的蓝色羽毛一闪，一只松鸦从刺柏丛中钻了出来。
22. He had clear blue eyes and a jutting chin.
    他有一双清澈的蓝眼睛和凸出的下巴。
23. Eddie wore blue jeans and a plaid shirt.
    埃迪穿着蓝色牛仔裤和方格布衬衫。
24. The woodwork's green now. I preferred it blue
    这个木制品现在是绿色的。我更喜欢它是蓝色的。
25. She was wearing a white ruffled blouse and a blue velvet skirt.
    她穿着一件有花边的白色上衣和一条蓝色天鹅绒裙子。
26. Blue suits you, sets off the colour of your hair.
    蓝色很适合你，能衬托出你的发色。
27. The tail feathers are dark blue at their bases, shading to pale blue at their tips.
    尾羽的根部呈深蓝色，到了尾尖就渐变成淡蓝色。
28. The walls in the front bedroom are painted with broad, pale blue and white stripes.
    前卧室的墙壁被漆成淡蓝色和白色相间的宽条纹。
29. He was wearing a stripy shirt and baggy blue trousers.
    他身着一件条纹衬衫和一条宽松的蓝裤子。
30. The bedroom walls would be painted light blue
    卧室的墙壁会被漆成浅蓝色。

  sad blue broken-hearted distressed miserable sorrowful unhappy wretched【导航词义：悲哀的，不愉快的】

  sad adj. 伤心的，使人难过的

〔辨析〕最普通用词，尤指因发生了令人不愉快的事情而感到难过的、悲伤的。

  blue adj. 〈非正式〉忧郁的，沮丧的

〔辨析〕指心情低落的，或觉得没有希望的，只作表语。

  broken-hearted adj. 伤心的，心碎的

〔辨析〕尤指因所爱之人死去或离去而感到极度悲伤的。

  distressed adj. 苦恼的，忧虑的

〔辨析〕指某种不好的事情、行为、消息等使人感到痛苦而烦恼的。

  miserable adj. 极不愉快的，痛苦的

〔辨析〕多指因孤单、寒冷或遭受恶劣对待而极不愉快的。

  sorrowful adj. 〈文〉悲伤的，伤心的

〔辨析〕多指因丧失亲人等而悲伤的。

  unhappy adj. 痛苦的，不快乐的

〔辨析〕多指因日常生活中遇到不如意之事而感到不愉快的，侧重指心理状态，即精神上不快的或失望的。

  wretched adj. 不愉快的，难受的

〔辨析〕多指因疾病、忧伤等而造成不幸的或痛苦的，可从外表上看出失望、沮丧等神情，令人同情。

adj.

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. You can argue till you're blue in the face, but you won't change my mind.
     你可以费尽口舌，但改变不了我的主意。

(beat sb) black and blue

• （把某人打得）青一块紫一块，伤痕斑斑
  (to hit sb until they are) covered with bruises (= blue, brown or purple marks on the body)

between the devil and the deep blue sea

• 进退维谷；左右为难
  in a difficult situation where there are two equally unpleasant or unacceptable choices

once in a blue moon

• 极少地；难得地；破天荒地
  very rarely

scream blue murder

• 不停地叫嚷（尤指叫屈、鸣不平）
  to scream loudly and for a long time, especially in order to protest about sth

n.

out of the blue

• 出乎意料；突然；晴天霹雳
  unexpectedly; without warning
  1. The decision came out of the blue.
     这个决定来得很突然。

a bolt from the blue

• 突如其来的事件（或消息）；晴天霹雳
  an event or a piece of news which is sudden and unexpected; a complete surprise
  1. Her dismissal came as a bolt from the blue.
     她被解雇简直就是晴天霹雳。

the boys in blue

• 警察
  the police