在一些已经打开的文档中，什么也没有，没有手册。

In several of those that have been opened, there are none, no manuals.

youdao

但是在一些已经打开的文档中，什么也没有，没有手册。

But in several of those that have been opened there are none, no manuals.

youdao

service命令没有手册页，但是您可以在运行这个命令时使用——help选项，您就可以得到有关它的操作的一些帮助信息。

The service command doesn't have a manual page, but if you run it with the — help option, you can get some help with its operation.

youdao