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Farmers work in a tomato greenhouse in Dongshanyin Village of Zaozhuang City, east China's Shandong Province, Dec. 7, 2018. Friday marked "Daxue" (Greater Snow), the 21st of the 24 solar terms. (Xinhua/Sun Zhongzhe)
Farmers work in a tomato greenhouse in Dongshanyin Village of Zaozhuang City, east China's Shandong Province, Dec. 7, 2018. Friday marked "Daxue" (Greater Snow), the 21st of the 24 solar terms. (Xinhua/Sun Zhongzhe)