Children play on ice slides at Harbin Ice-Snow World in Harbin, capital of northeast China's Heilongjiang Province, Feb. 7, 2017. (Xinhua/Wang Jianwei)
Children play on ice slides at Harbin Ice-Snow World in Harbin, capital of northeast China's Heilongjiang Province, Feb. 7, 2017. (Xinhua/Wang Jianwei)