Definition (確保)
To take necessary actions to ensure a particular outcome or condition is achieved or confirmed.
確認；確保
Before leaving the house, please make certain to lock all doors and windows.
在離開家之前，請務必鎖好所有門窗。
I will double-check to make sure that I have sent the correct document.
我會再確認一次，以確保我發送了正確的文件。
They make sure everyone has received the agenda before starting the meeting.
他們確保每個人都收到議程後才開始會議。