当设计一个Atom到JSON的序列化时，区分iri在atom文档中的两种用法非常重要。

When designing an Atom-to-JSON serialization, it is important to distinguish between the two USES of IRIs within an Atom document.

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一个叫做加文·道格拉斯的家伙把维吉尔翻译成了苏格兰韵诗，wraith的两种用法同时冒了出来。

A fellow named Gavin Douglas took it upon himself to translate Virgil into Scottish poetic meter and, along with everything else, out popped two USES for "wraith."

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这个词的两种用法，使得其具有积极和消极的两种含义，这并不是偶然所为，也不能因此指斥语言产生混乱。

This double usage of language, which gives to the same word a positive and negative meaning, is not an accident, and gives no ground for reproaching language as a cause of confusion.

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Let's look at how these two different ways can be used and expressed by the same pattern.

下面我们来看看这同一个句型怎样可以用和表达这两种不同的用法。

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