Window managers are generally tightly coupled with the desktop environment.

窗口管理器通常是与桌面环境紧密地捆绑在一起的。

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At the bottom of the window, click the Environment Variables button.

在窗口的底部，单击环境变量按钮。

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Because a portion of this tutorial deals with graphical elements of the Emacs operation in the X Window System environment, you should also have an X server up and running.

因为本教程中的部分内容研究了对X窗口系统环境中Emacs图形元素的操作，所以您应该拥有一台正常运行的X服务器。

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"When we talk about the environment, it's not window dressing, " insists Jeff Clarke, chief executive of Travelport, one of the world's largest travel conglomerates.

BBC: smokestack in Beijing