✔ 最佳答案
1. 'be my guest' is the English way of saying that a person is welcome and that hospitality is extended to them. that hospitality usually involves making one's resources available - so it is used in the sense of 'help yourself' - make free with my assets. Also figuratively tells someone to feel free to act as he or she pleases. "do as you wish" 隨便你, 唔使客氣.
eg. May I drive your car? Sure, be my guest.
Do you mind if I go to the play without you? No, be my guest.
2. "Knock yourself out," like "Have a ball," "Be my guest" and "Go crazy," is a sardonic way of giving permission, when your permission is solicited, to do something in which you have no intention to assist or participate. (帶諷刺性) 隨便你, 你要點就點,唔 關我事, 唔 到我話事的意思. It can be said to law enforcers wishing to search your premises, or the boss wishing to search your desk. You could also say it to someone wishing to spread their work in your living room.
"if you wanna stay, be my guest."
"If you want to keep working at it, be my guest."
"You want to complain to the manager? Be my guest."
"Can you eat my lunch? Sure, be my guest."