green （绿色）
green hand 新手
例：We are green hands, so we must learn from the old workers.
作为新人，我们一定要向老工人学习。
green 面带病容
例：What's wrong with you? You are looking green.
你怎么了？脸色看起来很苍白。
green 嫉妒
例：I was absolutely green (with envy) when I saw his splendid new car.
我看到他那辆漂亮的新汽车就非常眼红。
green fingers 有园艺技能
例：I know that his father was green fingers.
我知道他爸爸很有园艺技能。
blue （蓝色）
once in a blue moon 难得
例：She visits us once in a blue moon.
她难得来看我们一次。
blue 黄色的，有伤风化的
例：The blue film was banned by the censor.
那部黄色电影被当局禁了。
blue 忧郁、沮丧
例：He looks blue today.
他今天看起来很忧郁。
blue blood 贵族血统，名门出身
例：He is proud of his blue blood.
他为自己的贵族血统骄傲。 white （白色）
white coffee 加牛奶或奶油的咖啡
例：I want two white coffees.
我要两杯加牛奶的咖啡。
white lie 无恶意的谎言
例：Tom sometimes tells a white lie.
汤姆有时会撒一些无伤大雅的谎。
white elephant 无用而又累赘的东西（尤指大而昂贵之物）
例：That would be a white elephant to me.
那东西对我来说又贵又没用。
red （红色）
in/into/out of the red 有/没有亏损
例：The company has been in the red until he took over.
在他接手之前，公司一直都亏损。
see red 大怒，生气
例：Her criticisms were enough to make anyone see red.
她那些批评任谁都得火冒三丈。
catch somebody red-handed 当场发现某人正在做坏事或犯罪
例：The policeman caught the thief red-handed.
警察当场抓住了小偷。 black （黑色）
a black look 恶狠狠的瞪
例：He gave me a black look.
他恶狠狠地瞪了我一眼。
in black and white 以书面的形式
例：I want this agreement in black and white.
我要求以书面的形式把这项协议写出来。
black sheep 败家子，害群之马
例：Tom is the black sheep of the family.
汤姆是个败家子。
温馨提示：答案为网友推荐，仅供参考