With plenty of stats about your files and various ways to manipulate them, Index Your Files will provide an extremely user-friendly and powerful way to manage your information.

与他们大量的统计操纵你的文件和各种方式，索引你的文件将提供一个非常方便和强大的方式来管理您的信息。

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It is extremely useful when the user wants to know all of the results of one page.

如果用户想知道一个页面中的所有结果，那么它是非常有用的。

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The first principle listed in Figure 4 is extremely important: assume that all user input is evil!

图4中列出的第一个原则是极其重要的：假定所有用户输入都是不可信的！

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Apple has developed extremely user-friendly software to interface with its elegant designs.

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The PalmPilot runs on top of Palm OS, an extremely user-friendly, stripped-down bit of software that is just about perfect for an electronic organizer, although it would struggle to master anything much more complicated.

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It's extremely unintuitive and user-unfriendly.

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