这个命令把文件恢复到以前的状态，见清单7。

This command restores the file to its previous state, as shown in Listing 7.

youdao

您将需要启动一个新的文件恢复收集数据。

You will need to start a new file to resume collecting data.

youdao

技术总监的左膀右臂正在调查引发文件恢复失败的原因。

The right-hand man to the CTO is investigating the reason that caused the file recovery failure.

youdao

This is useful especially when we get to details like forensics and looking at data on a hard drive, - 'cause if you don't know how much store-- how many bits are composing your file, you're never gonna recover that data or be able to access what you're looking for.

这是很有用的，尤其是在法庭上,查看硬盘驱动器里的数据时，如果你连-,文件有多少比特都不知道，你如何去恢复数据,获取你想要的信息呢。

哈佛公开课 - 计算机科学课程节选