Sometimes, in the middle of a document I will start a new topic on a fresh sheet to have that clean feeling.
有时，在一个文档写到一半的时候，为了给自己一种干净的感觉，我会新建一页开始一个新的主题。
Simpler topic hierarchies: The document designer can add new types of content without having to add new types of topics.
更简单的主题层次结构：文档设计者可以添加内容的新类型，而无需添加主题的新类型。
This is because software developers lack structured guidance; the few books on the topic are relatively new, and they only document collections of best practices.
这是因为软件开发者缺乏结构化的指导；很少有比较新的这方面的书籍，他们只有收集最佳实践。
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