It is good manners to do... ……是礼貌的表现例句：

It is good manners to stop talking when you are eating dinner.

吃饭不说话是有礼貌的表现。

It is good manners to take off your shoes before you enter a house.

进屋前脱下鞋子是有礼貌的表现。

A:Don't you know it is good manners to stare one's eyes when he is speaking?

难道你不知道当别人说话时看着别人的眼睛是一种礼貌吗?

B:Sorry, my mother didn't tell me.

对不起，我妈妈没有告诉我。

背景音乐：

Mika——stuck in the middle