最好不做某事英文

前者had better do sth /not do sth.

You'd better not dofor example:It's raining cats and dogs now.正下着暴雨You'd better not go outside.你最好不要出去。

你最好不做某事You'd better not do！完整形式：you'd = you had

是You'd better not do sth完整形式是you hadwould表示过去的习惯would都用于问句，比如 would you mind ，would you please 千万别弄混了