turn somebody down

Từ điển Oxford Advanced Learner 8th

ˌturn sb/sthˈdown derived
to reject or refuse to consider an offer, a proposal, etc. or the person who makes it
• Why did she turn down your invitation?
• He has been turned down for ten jobs so far.
•He asked her to marry him but she turned him down.
Main entry: ↑turn_derived