Let him cool his heels for a while: that'll teach him to be impolite.
让他等一会儿吧, 好教训教训他别那麽没礼貌.
Nowadays impolite drivers constitute the majority of motorists.
现在没礼貌司机占多数。
It is impolite for children to cut in when their seniors are talking.
孩子们在他们的长辈谈话时插嘴是不礼貌的。