重点讲解：
1. do you mind/would you mind
（征求对方同意或者请求对方做某事时的礼貌说法）你是否介意；
eg. Do you mind if I ask you one more thing?
您不介意我再问您一个问题吧？
eg. Would you mind waiting outside for a moment?
您不介意在外面等一会吧？
2. would like sth./to do sth.
（礼貌地提议或邀请）想要；
eg. Here's your change. Would you like a bag?
这是找您的钱。您需要一个袋子吗？
eg. Would you like to come back for coffee?
有时间再过来喝杯咖啡好吗？
3. sit down
就座；坐下；
eg. I sat down, stunned.
我坐了下来，呆若木鸡。
eg. Hughes beckoned him to sit down on the sofa.
休斯示意他在沙发上坐下。