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A farmer harvests vegetable in Pengbao Township of Guyuan City, northwest China's Ningxia Hui Autonomous Region, July 16, 2019. (Xinhua/Yang Zhisen)
A farmer harvests vegetable in Pengbao Township of Guyuan City, northwest China's Ningxia Hui Autonomous Region, July 16, 2019. (Xinhua/Yang Zhisen)