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Children taste dried sweet potatoes during a traditional cultural activity to start the new semester at a local kindergarten in Changxing County of east China's Zhejiang Province, Feb. 20, 2019. (Xinhua/Xu Yu)
Children taste dried sweet potatoes during a traditional cultural activity to start the new semester at a local kindergarten in Changxing County of east China's Zhejiang Province, Feb. 20, 2019. (Xinhua/Xu Yu)