双语例句
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I recommend this book for anyone interested in the theory behind mathematics. A real jewel for your library and personal enjoyment. Just superb!
我向每一位对数学理论感兴趣者推荐此书，它是你图书馆中一颗当之无愧的明珠，也是你个人愉悦的源泉——一级棒！
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Is this mere personal enjoyment of value to society as a whole?
这种纯粹的个人享受对整个社会有价值吗？