Why don't you...? 句型的用法。
情景会话1 我对Fred的态度感到厌恶
Fred: I just don't think this is a good choice. (我只是觉得这不是一个好的选择。)
Zoey: Why don't you just shut your mouth, Fred? (你为什么不闭上你的嘴呢,Fred?)
情景会话2 我邀请好友Eddie同行
Zoey: Why don't you come with us? (要不你和我们一起去吧。)
Eddie: OK. What time shall we meet tomorrow? (我们明天几点见面?)