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A farmer operates a machinery to spray pesticides at Nanlai Village of Cixian County, north China's Hebei Province, on March 19, 2019. (Xinhua/Hao Qunying)
A farmer operates a machinery to spray pesticides at Nanlai Village of Cixian County, north China's Hebei Province, on March 19, 2019. (Xinhua/Hao Qunying)