We do this in the same way as in the previous step, but this time propagating change back when detected.

这个过程与前面的步骤一样，不过当检测到变更时，则将其传递回去。

youdao

Go back in time: the first step to overcoming self doubt is to recognize that it's there in the first place.

及时回到自我：克服自我怀疑首要的第一步是知道到它就在这里。

youdao

Take a step back in time for a moment to the early days of computer networking.

让我们暂时回到计算机网络的早期阶段。

youdao