如果你想搜索图书馆藏书，却不知道作者的名字、书名或文章的确切名称，你必须设置关键字查询。

If you want to search the library holdings and don't know the author's name or the exact title of the book or an article, you have to set up a keyword search.

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最重要的词语是你的关键字，当人们使用搜索引擎时，关键字会决定你的文章类型。

The most important words are typically your keywords, which are the words and phrases people may use in search engines when trying to locate your type of content.

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文章标题应该列出五个或六个关键字。

List five or six keywords that should be in the headline.

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