knew better than

• v. 很懂得(具有充分智慧)

knew better than的用法和样例：

例句

1. You should have known better than to go mountain climbing alone.
   你本来不该笨得单独去爬山。
2. You should have known better than to talk like that.
   你本应更懂事而不致说这样的话。