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Hearing-impaird He Xingwu, 74, teaches students sign language at a special school in Nanchang, capital of east China's Jiangxi Province, Sept. 13, 2017. (Xinhua/Peng Zhaozhi)
Hearing-impaird He Xingwu, 74, teaches students sign language at a special school in Nanchang, capital of east China's Jiangxi Province, Sept. 13, 2017. (Xinhua/Peng Zhaozhi)