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Swans attached with bird bandings perch in a lake in Rongcheng City, east China's Shandong Province, Feb. 14, 2018. (Xinhua/Feng Jie)
Swans perch in lake in Rongcheng City, E China's Shandong
Source: Xinhua| 2018-02-17 14:44:26|Editor: Lifang
