重点讲解：
1. get mad at sb.
对某人生气；
eg. Don't get mad at me.I did it all for your own good.
别生我的气，我这样做完全是为了你好。
eg. He did not tell his father about the exam result lest he get mad at him.
他没把考试结果告诉父亲，以免父亲对他发火。
2. do one's rounds
四处拜访；到处走访；
eg. The consultants still did their morning rounds.
这些顾问们上午仍然四处走访。
eg. He's doing his rounds of insurance firms.
他正在拜访一家又一家保险公司。
3. in a minute
马上；立刻；一会儿；
eg. Our guests will be here in a minute!
我们的客人马上就到！
eg. I'll be back in a minute.
我一会儿就回来。