请教一个短语Of course,we don't have to add salt to the wound." 里的
1个回答

给你说说:

大意:当然,我们不必(不是一定要)往伤口撒盐啊.

*don't have to 表示"不必",就是"不是一定要"要与musn't 区别开:

在"必须"的否定结构中:

don't have to 表示"不必"

mustn't 表示"禁止",一定不要.

You don't have to tell him about it.你不一定要把此事告诉他.

You mustn't tell him about it.你一定不要把这件事告诉他.