A cook airs animal-shaped steamed buns at a food plant in Huanghua City of north China's Hebei Province, Dec. 22, 2017. Animal shaped and auspicious patterned steamed bun, listed as an intangible heritage of Hebei, is a traditional festival food to greet the Winter Solstice, the shortest day of the year, which fell on Dec. 22 this year. (Xinhua/Mu Yu)