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Farmers cover the rice seedlings with plastic mulch at the field in Longshan County, central China's Hunan Province, April 4, 2018. (Xinhua/Zeng Xianghui)
Farmers cover the rice seedlings with plastic mulch at the field in Longshan County, central China's Hunan Province, April 4, 2018. (Xinhua/Zeng Xianghui)