CHONGQING, Feb. 24, 2016 -- Primary school teacher Tao Chaolei, 52, tutors his four students, including one in grade three and three pre-school kids, on the first lesson of the new term at Sujiacun Village of Wushan County in southwest China's Chongqing, Feb. 24, 2016. (Xinhua/Wang Zhonghu)
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