be sure to do sth./ be sure of/about sb. or sth. (1)be sure to do sth.可以用來表示說話人給對方提出要求.意思是“務(wù)必 .也可以用來表示說話人做出的推斷.意思是“一定 .“肯定 .例如: Be sure to lock the door when you leave.你離開時(shí)務(wù)必把門鎖好. It’s a good film. You are sure to enjoy it.這是一部好電影.你肯定會(huì)喜歡的. (2)be sure of/about sb.or sth. 可用來表示“某人對某事有把握 .例如: I’m sure of his success.我相信他會(huì)成功. I think it was three years ago, but I’m not sure about it.我想那是三年前的事情.但我沒有把握. 【查看更多】
