precaution

预防措施、防范措施常用复数

We took every precaution to keep the data safe.

我们采取了一切预防措施来保护资料安全。

谨慎、小心、戒备

He locked the door as a precaution before leaving.

他离开前谨慎地把门锁上。

以防万一、以资预防

Bring an umbrella as a precaution, just in case.

带把伞以防万一。