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Wild swans fly over a wetland in Pinglu, north China's Shanxi Province, Dec. 13, 2019. Migratory wild swans come to the wetland to spend winter every year. (Xinhua/Zhan Yan)
Wild swans seen at wetland in Pinglu, China's Shanxi
Source: Xinhua| 2019-12-13 22:01:39|Editor: ZX
