A: Dinning in a western restaurant, we should learn a lot of dos and don'ts.
A: 到西餐厅用餐。我们得多学些餐厅礼仪。
B: Is this the theme of your presentation?
B：这是你今天演讲的主题吗？

A: Mom will take us with her for dinner.
A：妈妈会带我们一起去吃晚餐。
B: Dinning in a western restaurant, we should learn a lot of dos and don'ts.
B：到西餐厅用餐,我们得多学些餐厅礼仪。

重点讲解：

Dinning in a western restaurant, we have to learn some restaurant etiquette.
Dinning in a western restaurant, we should learn a lot of dos and don'ts.
单词etiquette的意思是"礼节、礼仪"，比如diplomatic etiquette"外交礼仪"，常用在正式的书面语言中。在口语里其对应的表达方式为dos and don'ts, 字面意思是"可以做的事和不能做的事"，引申为"规范、要求"。