The 21-year-old college student Cai Yannan reads a book in a library in Liaocheng University in Liaocheng, east China's Shandong Province, April 23, 2017. The World Book Day falls on Sunday. (Xinhua/Zhao Yuguo)
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The 21-year-old college student Cai Yannan reads a book in a library in Liaocheng University in Liaocheng, east China's Shandong Province, April 23, 2017. The World Book Day falls on Sunday. (Xinhua/Zhao Yuguo)
