You'd better make sure of the time and place.
你最好把时间和地点弄清楚。
But first he must make sure of this man.
可是须得拉紧些。
I'll make sure of the time of the flight.
我要核实一下这班飞机的`时间。
I'd like to make sure of the time it leaves.
我想要确认班机时间没有改变。
Try to do everything to make sure of his safety.
要尽力确保他的安全。