something you say when you give someone permission to do or

来源: 于 2022-11-15 13:37:50 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次
something you say when you give someone permission to do or use something:
"Can I try out your new bicycle?" "Be my guest."
 
https://dictionary.cambridge.org/dictionary/english/be-my-guest?