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A flock of white swans flying over the Pinglu Yellow River Wetland in Pinglu County of north China's Shanxi Province.[Photo: Xinhua]
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![A flock of white swans flying over the Pinglu Yellow River Wetland in Pinglu County of north China's Shanxi Province.[Photo: Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090107/000d87ad3cdd0acea7a009.jpg "A flock of white swans flying over the Pinglu Yellow River Wetland in Pinglu County of north China's Shanxi Province.[Photo: Xinhua]")
