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Penguins walk along a snow slide escorted by staff members at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Jan. 5, 2018.(Xinhua/Wang Jianwei)
Penguins walk along a snow slide escorted by staff members at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Jan. 5, 2018.(Xinhua/Wang Jianwei)