您可以使用完全相同的(唯一的)格式来查询所有书籍出版商，只是在类别、作者等方面有所不同。

You'd form a query about the publisher of any book in exactly the same (unique) form, just with different category, author, and so on.

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每个包含它所表示的视频的更多信息，包括类别、标题、描述、发布日期、作者和持续时间。

Each contains further information on the video it represents, including the category, title, description, publication date, author, and duration.

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作者必须选择一个类别，并输入文章的标题、简单的摘要和故事的全文。

Authors must select a category and enter an article title, a brief synopsis, and the full text of the story.

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