城市化是人类走向文明的必然，是人类进步的象征，也是21世纪中国的一项伟大变革。
Urbanization is not only the inevitable trend of human civilization and the symbol of human's progress, but also is a great reform of China in the 21st century.
书籍是人类文明进步的象征，是人类的精神食粮。
Books are symbols of the progress of human civilization, and books are spiritual food for our mind.
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