Aerial photo taken on Sept. 13, 2016 shows the Shaying River full of floating duckweed in Wuying Village of Shenqiu County, central China's Henan Province. (Xinhua/Li Bo)
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Aerial photo taken on Sept. 13, 2016 shows the Shaying River full of floating duckweed in Wuying Village of Shenqiu County, central China's Henan Province. (Xinhua/Li Bo)