好书开卷引人入胜，闭卷使人得益。
That is a good book which is opened with expectation and closed with profit.
一本好书开卷引人入胜，掩卷使人获益。
There is a good book which is opened with expectation and closed with profit.
一部好书，开卷则引人入胜，掩卷则让人获益。
That is a good book which is opened with expectation and closed with profit.
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