take a rain check
推迟或延期某事；请求推迟或延期某事
口语·礼貌推迟邀约
英文释义
to decline an invitation or offer, but with the intention of accepting or participating at a later time
例句
I can't make it to dinner tonight, but can I take a rain check?
典故来源
源自棒球比赛，因下雨延期时观众可凭票根改日观看，后引申为推迟邀约。