be sure to do

• 肯定； 一定会 ...

be sure to do的用法和样例：

例句

1. I'm sure I don't deserve so much praise.
   我肯定自己不值得这么多赞扬。
2. It's definite that he'll be late again.
   他肯定又要迟到。
3. He's sure to get on in the world.
   他一定会出人头地。
4. If I do, I will be sure to send you a souvenir.
   如果我去了，一定会送你纪念品。