1·Further simplification is possible; notice how this only simplifies at the bottom levels of the tree?
还可以再进一步简化；注意一下：它是如何实现只简化树的最底层的？
2·This helper function simplifies the addition of a node to the document, as shown in Listing 4.
此助手函数简化了将一个节点添加到文档中的步骤，如清单4所示。
3·VFS is also like UNIX's "everything is a file" concept, in that it's easy to understand and imitate the idea, but it might take years to appreciate how much it simplifies application design.
VFS 和 UNIX 的“一切均是文件”的概念也很相似，因为这个想法很容易理解和模仿，但是要意识到它能将应用程序设计简化到哪种程度，还需要花几年工夫。
4·A model simplifies a complex system by exposing only some aspects of the system.
模型通过只公开系统的某些特定方面来简化复杂的系统。
5·Remote access simplifies use of tools on data from your remote systems.
远程访问简化了从远程系统使用工具处理数据的工作。