1.keep one's shirt on保持冷静 (来源：英语聊天室 http://chat.EnglishCN.com)

     Keep your shirt on. He didn't mean to offend you. That's just the way he talks.

     保持冷静。那只是他说话的惯常方式，他并非有意要冒犯你。

     2.cool it冷静一点

     Cool it. You are making me mad.

     冷静一点。你快把我逼疯了。

     3.joy ride兜风

     Let's go for a joy ride.

     让我们去兜兜风。

     4.rap说唱乐

     Do you like rap music? I have trouble understanding the words.

     你喜欢说唱音乐吗？我听不太懂其中的歌词。

     5.red-letter day大日子

     This is a red-letter day for Susan. She made her first sale to a very important client.

     今天是susan的大日子。她和一个非常重要的客户做成了第一笔生意。