单词：be sure to
肯定,必定,必然会…
be sure to的用法和样例：
例句
- Be sure to place them correctly.务必把这些东西放对地方。
- Be sure to lock your bicycle.自行车务必上锁。
- Be sure to get the work finished before six o'clock.务必在六点之前把工作完成。
- Be sure to sweep the room clean.一定要把房间打扫干净。
- As to marriage or celibacy, let a man take which course he will, he will be sure to repent.要结婚还是独身，让男人照自己的意思去做吧，他一定要后悔的。
- Be sure to clear off the rubbish.一定要清理垃圾。