sir
US /sɝː/
UK /sɝː/
1.
先生
used as a polite or respectful way of addressing a man, especially one in a position of authority or who is older than the speaker
:
•
Excuse me, sir, could you tell me the way to the station?
打扰一下，先生，您能告诉我车站怎么走吗？
•
Yes, sir, I understand.
是的，先生，我明白了。
2.
爵士
used as a title before the name of a knight or baronet
:
•
Sir Isaac Newton was a brilliant scientist.
艾萨克·牛顿爵士是一位杰出的科学家。
•
The Queen knighted him, and he became Sir John.
女王授予他爵士头衔，他成为了约翰爵士。