RED
1.　red ball 特别快车　例句：There are several red balls between Wuhan and Beijing.
2.　red cap 服务搬运工　例句：A red cap will help you with your baggage in a hotel or in a railway station.
3.　red carpet 隆重的接待或欢迎　例句：We will roll out the red carpet for the delegation.
4.　red eye 廉价的烈性威士忌　例句：He had the habit of drinking the red eye every day.
5.　red hot 感情强烈的人　例句：Tom is a red hot .
6.　red ink 赤字，亏空　例句：there is some red ink in his business.
7.　red meat　牛羊肉　例句：　Many people prefer red meat to  white meat.
8.　red-pencil 修改，改正　例句：The lawyer red-penciled the law suit.
9.　red tape 官僚习气　例句：We must get rid lf the red tape in the government offices.
YELLOW
1.　yellow alert 空袭的预备警报　例句：People will be frightened if there’s a yellow alert.
2.　yellow back 通俗廉价小说　例句：There were a lot of yellow backs in the 19th century.
3.　yellow-belly　胆小鬼，懦夫　例句：everybody　knows that he is a yellow-belly,so nobody like him.
4.　yellow press 黄色报刊　例句：The yellow press cannot be published in our country.
5.　yellow streak(口)胆怯　例句：He has a yellow streak in him.

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