do someone a favor

US /duː ˈsʌm.wʌn ə ˈfeɪ.vər/
UK /duː ˈsʌm.wʌn ə ˈfeɪ.vər/
"do someone a favor" picture
1.

帮一个忙, 施恩

to do something to help someone

:
Could you do me a favor and pick up my mail?
你能帮我一个忙去取我的邮件吗?
I'll do you a favor this time, but don't expect it again.
这次我帮你一个忙,但别指望下次。