:to do what you want to do — used especially to tell people that they can do what they want even though you do not think it is what they should do做自己想做的事,随你便(尤指用来告诉他人可以随便做自己喜欢的事情)
“I don't want to go.” “Suit yourself. [=do what you want] We'll go without you.”“我不想去。”“随你便。你不去我们也去。”