Visitors walk near ice floe on the Xingkai Lake, border lake between China and Russia, in Jixi City of northeast China's Heilongjiang Province, Feb. 15, 2017. (Xinhua/Wang Jianwei)
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Visitors walk near ice floe on the Xingkai Lake, border lake between China and Russia, in Jixi City of northeast China's Heilongjiang Province, Feb. 15, 2017. (Xinhua/Wang Jianwei)