It is not necessary to save after every configuration modification.
没有必要在每次修改过配置后都进行保存。
It is a good idea to save the configuration after this step and after every critical step in creating the topology shown in Figure 4.
在这一步骤以及创建图4中所示的拓扑的每一个重要步骤之后保存配置，这是一个很好的想法。
After working through this tutorial, you'll know how to change every aspect of the Emacs editing environment, and how to save your customizations so that they can be recalled later.
在完成本教程的学习之后，您将了解如何更改Emacs编辑环境的各个方面，以及如何保存您的自定义工作，以便稍后可以再次调用它们。
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