1 Sorry？(最地道，老外用得最多的，注意音调上扬)

　　2 Excuse me ?  （这个相对正式一点）

　　3 Pardon?  (这个听起来很正式)

　　4 I beg your pardon? （这个听起来超级正式，一般对长者，或者上层社会）

　　5 What was that? (介于正式和非正式之间) 或者What was that, sorry?

　　6 What did you say? 或者What did you say，sorry? 

　　7 I don't understand, could you say that again please?= I don't understand, please could you say that again ?

　　8 Sorry, what did you just say? （就重复刚刚说的那个）=What did you say just then?

　　9 Sorry, I didn't quite catch that? (自己没有全懂，懂了一部分)= Sorry, I didn't quite get that.

　　10 Would you mind speaking up a bit? 能稍微大点声吗？

　　11 Sorry, I'm not following what you're saying. =Wait a second. I'm a bit lost. 你可能知道对方说的每个词，但是不太懂这个句子组在一起的意思

　　12 Would you mind slowing down a bit? I'm struggling to follow.   别人说得太快时

　　13 I'm not sure I understand what you mean by...就具体一个词没听懂，其他都懂时= I’m not sure what you mean by...

　　14 I'm sorry to interrupt, but would you mind repeating... 打断别人让对方重复= I‘m sorry to butt in, but....

　　本文来源：English with Lucy