For example, only one document was analyzed.
例如，只分析一个文档。
The team needs to submit only one document for the whole team.
每一个小组，整组只需缴交一份作业。
Delete this help topic if your application support only one document type.
如果你的应用程序仅仅支持一种文档类型，删除先前的句子。
For example, an XML document may have one, and only one, root element.
比如，XML文档必须有且只有一个根元素。
The instance document contains only one Region element.
该实例文档仅仅包含一个Region元素。
A subject contains many documents, but each document can only belong to one subject.
一个主题可以包含很多文档，但是每个文档只能属于一个主题。
A subject contains many documents, but each document can only belong to one subject.
一个主题可以包含很多文档，但是每个文档只能属于一个主题。
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