有了这个符号链接及每一个位于单独目录的部署，应用程序就可以轻松回滚到之前的版本。

With this symlink in place and each deployment in a separate directory, it is easy to roll back to previous versions of the application.

youdao

这些都是方法调用，每一个都将符号作为一个单独的参数。

These are method invocations, each taking a symbol as a single parameter.

youdao

这很关键：,如果他们自己不愿意使用，符号就没有意义，这也就应证了我们的观点,没有人能单独改变一个群体符号的使用方式。

That's the crucial thing: if they're not willing, the use of the sign doesn't work, which confirms the idea that nothing can be changed simply by individual agency in and of itself.

youdao

That's the crucial thing: if they're not willing, the use of the sign doesn't work, which confirms the idea that nothing can be changed simply by individual agency in and of itself.

这很关键：,如果他们自己不愿意使用，符号就没有意义，这也就应证了我们的观点,没有人能单独改变一个群体符号的使用方式。

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