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A first-grade student and a teacher engage in a high-five during a class at the start of new term at a school in Xining, northwest China's Qinghai Province, March 1, 2019. (Xinhua/Zhang Hongxiang)
A first-grade student and a teacher engage in a high-five during a class at the start of new term at a school in Xining, northwest China's Qinghai Province, March 1, 2019. (Xinhua/Zhang Hongxiang)