如果您在没有连接到因特网的情况下在本地运行应用程序，那么您不能访问该服务，故不能跟踪所出现的情况。

If you run your application locally, without a connection to the Internet, you cannot access this service, and thus cannot trace what is going on.

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从更深一步来讲，Web服务的实际定义就是应用于因特网上的分布式应用程序的一种特定的软件服务。

Taking these definitions a step further, the pragmatic definition of a web service would then be that of a specialized software service that is consumed by distributed applications over the Internet.

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后者的一个很好的示例是一个单独的SLA，它适用于Web基础架构的每一段，从因特网到Web服务应用程序。

A good example of the latter would be a single SLA that applies to every piece of a Web infrastructure, from the Internet to Web services applications.

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