This password is of course a secret that must be carefully protected.

当然，此密码是机密的，必须谨慎保护。

youdao

This password is, of course, a secret that must be carefully protected.

当然，此密码是机密的，必须谨慎保护。

youdao

Since they are stored on computer file systems, those file systems must be carefully protected.

由于它们存储在计算机文件系统中，所以这些文件系统必须妥善保护。

youdao

They are proud of their little domain: it's squeaky clean, carefully protected.

BBC: From Bhutan to the Bronx

Banks are highly regulated and their data is carefully protected.

FORBES: New York's FinTech Innovation Lab Links Startups To Big Banks

The ship, which is an official maritime war grave, is carefully protected by the local council, but hundreds of other vessels dotted round the UK coastline do not enjoy the same protection.

BBC: poppy memorial wreath