If the cause is unknown, then you should perform a full recovery of the instance.

如果原因不明，那就应当执行实例的完全恢复。

youdao

We perform full backups every week and incremental backups daily.

我们每周执行一次完整备份，每天执行一次增量备份。

youdao

It also provides a mechanism to perform full Boolean queries against these Categories (e.g. ANDs and ORs).

它还提供了一种机制可以对这些类别执行全部的布尔操作(如，AND和OR)。

youdao

He left high school to perform full time on radio shows.

VOA: special.2009.09.27

Broken into four smaller squads, the Sea Gals left their posts at the corners of the end zones only to perform full-group numbers between quarters.

FORBES: Do You Have What It Takes To Be A Sea Gal?

Perform a full system scan with your AV tool to confirm the existence of the infection.

FORBES: IBM Distributes Malware-Infected USB Sticks At Security Conference

Users will be able to perform the full breadth of online tasks-from hopping onto their social networking sites and updating their blogs, to checking email and viewing streaming video.

ENGADGET: ASUS gets official with P835 WVGA smartphone