We should never be rude to our elders.

我们不能对长辈有丝毫不敬。

It would be rude to remark upon her appearance.

议论她的外表是不礼貌的。

A:Oh,shit,my car is shot again.

噢!天哪，我的车又坏了。

B: Language.

注意语言!

A:Sorry,I didn't mean to be rude,I just..It's not the first time.

对不起，我不是故意的。只是....这不是第一次了。

B:Next time,you should really control your emotions.

下一次，你要控制你的情绪。