Be sure to
US /bi ʃʊr tə/
UK /bi ʃɔː tə/
短语
务必, 一定要
used to tell someone to remember to do something
示例:
•
Be sure to lock the door when you leave.
离开时务必锁好门。
•
Be sure to call me when you arrive.
你到达时务必给我打电话。