这本书很值得我们去读，因为它描述了XP实践以及它是如何被最初众多的XP项目小组使用的。

It is worth reading because it describes the XP practices and how they were used by members of the original XP project team.

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在这本书的旁注中使用了几个视觉线索来引起你对提示，关键问题的注意，或者通知你一些潜在的缺陷和这些实践是如何连接起来的信息。

Several visual cues are used in the margins to draw your attention to tips, key questions, warnings about potential pitfalls, and information about how the practices link together.

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第一部分，包括1 - 3章，描述了一般模式，如何获取数据，以及您怎样来使用这本书。

Part I, consisting of chapters 1-3, describe patterns in general, how the data was obtained, and how you might use the book.

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