在应用补丁之后的任何时间，只需要单击按钮就可以轻松地回滚到先前的虚拟系统状态。
Any time after the fix application, you can elect to rollback to the previous virtual system state by simply clicking a button.
如果需要的话，您只需单击按钮就可以回滚到先前的状态。
If desired, you can roll back to the prior state simply by clicking a button.
在一种转换开始，但在完成前中止的情况下，没有设备可以保证该情况将导致所有输入参数重新设置成先前的状态。
In a case where a transformation begin, but aborts before completion, there are no facilities to guarantee that this condition will result in the reset of all input parameters to their previous state.
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