Allows you to search for books and return title, author, book type, and description.
允许您搜索图书，并返回标题、作者、图书类型、图书描述。
Type the regexp to search for: t [a-z].
键入要搜索的regexp：t [a - z]。
To search for the same phrase in the opposite direction, type n.
想再次搜索相同的短语并以相反的方向，键入n。
To search for the same phrase in the opposite direction, type n.
想再次搜索相同的短语并以相反的方向，键入n。
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