1.Black and blue
含义：被暴打了一顿，脸上青一块紫一块。形容打架斗殴或是练拳擦掌的时候都能用得到。
例句：
After Sam lost the wrestling match he was black and blue.
山姆摔跤比赛结束后(脸上)青一块紫一块的。
2.Black sheep of the family
含义：一群白羊里面就你一只黑的，这种家族画风和别人明显不一样的就可以说”Black sheep of the family”——注意了，和我们传统意义上说的“鹤立鸡群”不一样，这个词组是带有贬义的。
例句：
My sisters are so successful. One is a doctor, the other is an engineer but I'm the black sheep of the family. My parents hate me sometimes because I get pretty bad grades.
我的姐姐都很成功：一个是医生，另一个是工程师，只有我是“坏了一锅汤的老鼠屎”——我的父母有时候真的很讨厌我，因为我成绩差的不行。
3.Black tie event
含义：至非常正式的活动或是宴会——男性常被要求西装革履，女性则是款款长裙。
例句：
The Oscars is one of the world’s most famous black tie events.
奥斯卡是全世界最出名的盛装场合。
4.Out of the blue
含义：出乎意料，所料不及。
例句：
One day, out of the blue, she announced that she was leaving.
有一天，她出人意料地宣布她要离开了。
5.Catch someone red-handed
含义：干坏事被人抓包了。
例句：
Tom was stealing the car when the police drove by and caught him red-handed.
汤姆正在偷车的时候被路过的警察抓个正着。
6.To paint the town red
含义：出去浪，参加派对浪浪浪~
例句：
They were out painting the town red last night.
昨晚他们都出去耍了~
7.Roll out the red carpet
含义：隆重欢迎热烈欢迎。这个俚语源自好莱坞。当明星盛装出场、走红毯被众生包围欢呼之时，生动形象的刻画了这个俚语。
例句：
They were ready to roll out the red carpet when they heard that a celeb was in their city until they realized he was not the real McCoy.
听说名人来到他们所在的城市时，他们准备隆重欢迎一下的，结果发现来的不是本人。
8.Green thumb
含义：有园艺天赋。
例句：
Jillian has quite a green thumb; look at her tomato patch!
吉莉安很有园艺天赋。看看她的土豆地呀！
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