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Wang Beihai (L) teaches Chen Weiyu how to make a phone call at the Sanhe Elementary School in Dabaidi Township of Ruijin City, east China's Jiangxi Province, May 8, 2019. The Sanhe Elementary School, located deep in the mountains of Ruijin, has only one teacher, 46-year-old Wang Beihai, and one student Chen Weiyu, a 9-year-old boy from a poverty-stricken family. (Xinhua/Lan Hongguang)
