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Farmers work at a melon farm in Zaozhuang City, east China's Shandong Province, Jan. 20, 2018, also the Great Cold (Dahan) solar term on the Chinese Lunar Calendar. (Xinhua/Zhang Qiang)
Farmers work at a melon farm in Zaozhuang City, east China's Shandong Province, Jan. 20, 2018, also the Great Cold (Dahan) solar term on the Chinese Lunar Calendar. (Xinhua/Zhang Qiang)