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An aerial view of the 21st edition of Ice-Snow World is seen in Harbin, capital of northeast China's Heilongjiang Province, Dec. 23, 2019. (Xinhua/Xie Jianfei)
 
 
An aerial view of the 21st edition of Ice-Snow World is seen in Harbin, capital of northeast China's Heilongjiang Province, Dec. 23, 2019. (Xinhua/Xie Jianfei)