make certain

US /meɪk ˈsɜːr.tən/
UK /meɪk ˈsɜːr.tən/
"make certain" picture
1.

确保, 查明

to ensure something; to take action so that something is certain to happen

:
Please make certain that all windows are closed before you leave.
离开前请务必确保所有窗户都已关闭。
I need to make certain I have enough money for the trip.
我需要确保我有足够的钱用于这次旅行。