举例来说，如果一个用例模型被多个项目的内容所引用，那么它就不应当存在于任何一个引用项目中。
For example, if a Use-Case Model is referenced by the contents of multiple projects, it should not reside in any of those referencing projects.
此代码还举例说明了指定回调的参数的一种方法：作为一个匿名列表，具有到作为第一个 参数的回调的引用，随后是所需的参数。
This code also demonstrates one way to specify arguments to a callback: as an anonymous list, with a reference to the callback invoked as the first element, followed by the required parameters.
与之相反，他推荐(引用自martin Fowler)工具应当适应人以及既存的流程，接下来举例论证了这是如何实现的。
Instead, he recommends (quoting Martin Fowler) that tools adapt to the people and existing processes and then goes on to cite examples of how that might be accomplished.
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