make certain of

US /meɪk ˈsɜːr.tɪn ʌv/
UK /meɪk ˈsɜːr.tɪn ʌv/
"make certain of" picture
1.

確認, 確保

to ensure or confirm something

:
Please make certain of the details before you submit the report.
提交報告前請務必確認細節。
He wanted to make certain of her safety before leaving.
他想在離開前確保她的安全。