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A farmer spread manure at a greenhouse in Dongrulin Village of Yiyuan County in Zibo City, east China's Shandong Province, Nov. 14, 2018. (Xinhua/Zhao Dongshan)
A farmer spread manure at a greenhouse in Dongrulin Village of Yiyuan County in Zibo City, east China's Shandong Province, Nov. 14, 2018. (Xinhua/Zhao Dongshan)