包含书籍目录的 XML 文档。

An XML document that contains customers and orders.

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图书馆目录的标签可以生成任何书籍的活动地图并且知道搜索者找到它，甚至是当它已经下架，被上一个阅读者放在桌子上的时候。

Tabs in library catalogs can make active maps to any book and guide searchers to it, even if it is off the shelf and on a table from the last reader.

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样本数据库是一个简短的图书目录，包括多种园艺书籍。

The sample database is a short book catalog highlighting various gardening books.

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