Again, you have to respect your time. If you apologize, you are sending the message that you are doing something wrong by saying no, that somehow you don't have a strong right to say no.

还是得珍惜自己的时间，如果你道歉的话，就好像是在为做错一件事而道歉，这样一来你拒绝的理由也就显得不甚充分了。

youdao

Apologize for doing something wrong.

为做错什么事而道歉。

youdao

After you have calmed down, apologize for leaving and continue with what you were doing.

当你平静下来之后，为离开而道歉，并继续你之前做的事。

youdao

If you keep in mind what can and often does go wrong, you are likely to find the inner strength to ask questions, even if you have to apologize for not saluting the doctor and doing what you are told.

CNN: Talk back to your doctor