To pursue high-quality service is always the eternal theme of library work.

追求优质服务是图书馆工作永恒的主题。

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Theme information service of the edition.

版块主题信息服务。

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The service is a constant theme of the library.

服务是图书馆永恒的主题。

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The service is a constant theme of the library.

服务是图书馆永恒的主题。

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