A: Dinning in a western restaurant, we should learn a lot of dos and don'ts.
A: 到西餐廳用餐。我們得多學些餐廳禮儀。
B: Is this the theme of your presentation?
B：這是你今天演講的主題嗎？

A: Mom will take us with her for dinner.
A：媽媽會帶我們一起去吃晚餐。
B: Dinning in a western restaurant, we should learn a lot of dos and don'ts.
B：到西餐廳用餐,我們得多學些餐廳禮儀。

重點講解：

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.
單詞etiquette的意思是"禮節、禮儀"，比如diplomatic etiquette"外交禮儀"，常用在正式的書面語言中。在口語里其對應的表達方式為dos and don'ts, 字面意思是"可以做的事和不能做的事"，引申為"規范、要求"。