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Aerial photo taken on April 20, 2018 shows the farmland of gingers covered with plastic mulch at Xinjuntun Village of Tangshan City, north China's Hebei Province. (Xinhua/Yang Shiyao)
Aerial photo taken on April 20, 2018 shows the farmland of gingers covered with plastic mulch at Xinjuntun Village of Tangshan City, north China's Hebei Province. (Xinhua/Yang Shiyao)