blue
adj
noun
bluː adj
1 having the colour of the sky or the sea on a fine day 蓝色的，蔚蓝色的，天蓝色的;
the blue waters of the lake
蓝蓝的湖水
dark/light/pale/bright blue
a dark blue raincoat
一件深蓝色的雨衣
2 sad and without hope [非正式] 忧郁的，沮丧的，悲观的; not before noun 不用于名词前 | informal
I’ve been feeling kind of blue .
我心情有点不大好。
3 blue jokes, stories etc are about sex, in a way that might offend some people [非正式] 〔笑话、故事等〕黄色的，色情的 informal
4
argue/talk etc till you’re blue in the face
to argue, talk etc about something a lot, but without achieving what you want [非正式] 费尽唇舌，嘴巴说乾了都没用 informal
You can tell them till you’re blue in the face, but they’ll still do what they want.
你就算费尽唇舌，他们还是会我行我素。
5
blue with cold
someone who is blue with cold looks extremely cold [尤英] 冻得发紫 especially BrE
6
go blue
if someone goes blue, their skin becomes blue because they are cold or cannot breathe properly [英] 〔因寒冷或不能正常呼吸而〕脸色发青 BrE
7
talk a blue streak
to talk very quickly without stopping [美，非正式] 喋喋不休，说个没完 AmE informal
noun
8 the colour of the sky or the sea on a fine day 蓝色 C,U
She nearly always dresses in blue.
她几乎总是穿蓝色的衣服。
the rich greens and blues of the tapestry
挂毯上浓艳的绿色和蓝色
9
blues the blues
also 又作 a slow sad style of music that came from the southern US 布鲁斯音乐，蓝调音乐〔起源于美国南方的一种缓慢、忧郁的音乐风格〕 U
a blues singer
布鲁斯歌手
10
the blues
feelings of sadness [非正式] 忧郁，沮丧 plural 复数 | informal
A lot of women get the blues after the baby is born.
许多妇女产后会感到忧郁。
11
out of the blue
if something happens out of the blue, it is very unexpected [非正式] 出乎意料地，突如其来地 informal
12
Blue
someone who has represented Oxford or Cambridge University at a sport, or the title given to such a person [英] 校队选手，蓝色选手; 蓝色荣誉〔给予牛津或剑桥大学校队运动员的一种荣誉〕 C | BrE
13
the blue
the sea or the sky [文] 海洋; 天空 literary