在您使用文件系统时在后台执行碎片整理。
Defragmentation can occur in the background while you are using your system.
如果在后台执行安装,那么更难于诊断安装错误。
If you perform the installation in the background, any installation errors are more difficult to diagnose.
还可以使用 -b 参数将这个操作转到后台执行。
This can also be done in the background with the -b parameter.
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