A parent goes sledging with his child at an activity center in Harbin, capital of northeast China's Heilongjiang province, Jan. 9, 2017. Kids are having fun with winter sports in cold winter days. (Xinhua/Wang Kai)
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A parent goes sledging with his child at an activity center in Harbin, capital of northeast China's Heilongjiang province, Jan. 9, 2017. Kids are having fun with winter sports in cold winter days. (Xinhua/Wang Kai)
