blue

sad, unhappy, gloomy, blue, sorrowful, melancholy

名词 blue:

1. blue color or pigment; resembling the color of the clear sky in the daytime
   同义词：blueness
2. blue clothing
3. any organization or party whose uniforms or badges are blue
4. the sky as viewed during daylight
   同义词：blue sky, blue air, wild blue yonder
5. used to whiten laundry or hair or give it a bluish tinge
   同义词：bluing, blueing
6. the sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic
   同义词：amobarbital sodium, blue angel, blue devil, Amytal
7. any of numerous small butterflies of the family Lycaenidae

动词 blue:

1. turn blue

形容词 blue:

1. of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky
   同义词：bluish, blueish
2. used to signify the Union forces in the American Civil War (who wore blue uniforms)
3. low in spirits
   同义词：depressed, dispirited, down, downcast, downhearted, down in the mouth, low, low-spirited
4. characterized by profanity or cursing
   同义词：blasphemous, profane
5. suggestive of sexual impropriety
   同义词：gamy, gamey, juicy, naughty, racy, risque, spicy
6. belonging to or characteristic of the nobility or aristocracy
   同义词：aristocratic, aristocratical, blue-blooded, gentle, patrician
7. morally rigorous and strict
   同义词：puritan, puritanic, puritanical
8. causing dejection
   同义词：dark, depressing, dingy, disconsolate, dismal, dispiriting, gloomy, grim, sorry, drab, drear, dreary

1. He can write me letters till he's blue in the face, I'm not going to reply.
   任他没完没了地给我写信，我就是不回信。
2. The room was painted in various shades of blue.
   房间是用深浅不一的蓝色粉刷的。
3. I'm feeling blue today.
   我今天的心情不好。
4. She wore a dark blue coat.
   她穿着一件深蓝色的上衣。

blue

n.（名词）
Abbr. bl.Color The hue of that portion of the visible spectrum lying between green and indigo, evoked in the human observer by radiant energy with wavelengths of approximately 450 to 490 nanometers; any of a group of colors that may vary in lightness and saturation, whose hue is that of a clear daytime sky; one of the additive or light primaries; one of the psychological primary hues.
缩写 bl.【色彩】 蓝色，天蓝色：光谱介于绿色和紫蓝色之间的色彩，由波长大约为450至490纳米的射线产生，是人们能观察到的颜色；区别于淡色和深色的颜色，其色彩与晴朗的天空类似；原色的染色或褪色；心理学上的基本特色之一

A pigment or dye imparting this hue.
蓝色染料，蓝色颜料：加上这种色彩的色素或颜料
Bluing.
上蓝剂

An object having this hue.
蓝色的物体：有这种颜色的物体
Dress or clothing of this hue:
蓝色的衣服或布：
例句：
The ushers wore blue.
领位员身着蓝色制服

A person who wears a blue uniform.
穿蓝色制服的人
blues A dress blue uniform, especially that of the U.S. Army.
blues 蓝色制服，尤用于美国武装部队
Often Blue
常作 Blue
A member of the Union Army in the Civil War.
美国南北战争北军的一员
The Union Army.
美国南北战争中的北方部队
A bluefish.
鲑，蓝鱼
A small blue butterfly of the family Lycaenidae.
蓝蝶：灰蝶科的小蓝蝴蝶

The sky.
蓝天
The sea.
碧海
adj.（形容词）
blu.er,blu.est
Color Of the color blue.
【色彩】 青色的
Bluish or having parts that are blue or bluish, as the blue spruce and the blue whale.
带青色的，浅蓝色的：青色的或有一部分是蓝色或青色的，如蓝云杉和蓝鲸
Having a gray or purplish color, as from cold or contusion.
青紫的：灰色的或略带紫色的，由受冷或受伤造成
Wearing blue.
身着蓝装的

Gloomy; depressed.See Synonyms at depressed
沮丧的；受压抑的参见 depressed
Dismal; dreary:
阴郁的；沉闷的：
例句：
a blue day.
乏味的一天

Puritanical; strict.
清教徒的；戒律很严的
Aristocratic; patrician.
贵族的；高贵的
Indecent; risqué:
下流的；有伤风化的：
例句：
a blue joke; a blue movie.
淫秽的玩笑；黄色电影

v.tr.intr.（及物动词和不及物动词）
blued,blu.ing,blues
To make or become blue.
使成蓝色，变为蓝色

<习惯用语>blue in the face
To the point or at the point of extreme exasperation:
脸色发青：至于或处于极度愤怒的状态：
例句：
I argued with them until I was blue in the face.
和他们争论到我脸色发青

into the blue
At a far distance; into the unknown.
远距离；遥不可测
out of the blue
From an unexpected or unforeseen source:
出乎意料的：来自没有想到或没有预测的：
例句：
criticism that came out of the blue.
突如其来的批评

At a completely unexpected time:
突然的，始料不及的：在意料不到的时间里：
例句：
arrived out of the blue.
突然拜访

来源：
Middle English blue, bleu
中古英语 blue, bleu
from Old French bleu
源自 古法语 bleu
[of Germanic origin] * see bhel-
[源于日耳曼语的] *参见 bhel-

【引伸】
blue.ly
adv.（副词）
blue.ness
n.（名词）