【大发彩神APP计划群苹果APP_大发彩神APP计划群苹果APP官网】Classes taken to popularize knowledge of protecting eyes in E China's Zhejiang

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A medical staff member introduces eye's structure and cause of myopia in Donglin primary school in Donglin Township of Huzhou City, east China's Zhejiang Province, Sept. 4, 2018. Classes are being taken to popularize the knowledge of protecting eyes as China aims at curbing the rise in nearsightedness-or myopia-among children and teenagers. (Xinhua/Xu Yu)

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