Definition (行为)
The expected basic level of politeness and respect that should be shown to others.
基本的礼貌
In business settings, being on time for appointments is a matter of common courtesy.
在商务场合中，准时赴约是一种基本礼貌。
Even if you disagree with their views, you should respond with common courtesy.
即使你不同意他们的观点，也应该以基本礼貌回应。
Keeping quiet in the library is an act of common courtesy.
在图书馆保持安静是一种基本礼貌。