roll back point的意思|示意

One usage of the snapshot feature may be to roll back a corrupted HDFS instance to a previously known good point in time.

一个使用可能快照功能的情况是一个失效的HDFS实例想要回滚到之前一个已知是正确的时间。

Similarly, if an error occurs, the invoker of the procedure needs to decide whether to roll back the process to that point or not.

同样，如果发生错误，那么过程的调用者需要决定是否将过程回退。

The point of a climate treaty, then, isn't so much to roll things back as to keep them from getting a whole lot worse—a worthy and important goal, if not a particularly inspiring one.

这个即将签署的气候协议的意图并不是要把事情倒回去以免越变越坏。 它能发挥的作用如果不是什么特别鼓舞人心的事情的话，那么它能做到的就是去达成一个值得去做且至关重要的目标。