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Aerial photo taken on April 17, 2018 shows people working at a pearl farm in a reservoir in Weiying Town of Sihong County, east China's Jiangsu Province. (Xinhua/Xu Changliang)
Aerial photo taken on April 17, 2018 shows people working at a pearl farm in a reservoir in Weiying Town of Sihong County, east China's Jiangsu Province. (Xinhua/Xu Changliang)