Students and their teacher make dumplings together to celebrate the upcoming Winter Solstice festival at Mingde Elementary School in Guangping County in Handan City, north China's Hebei Province, Dec. 20, 2017. Winter Solstice, the shortest day of the year, falls on Dec. 22 this year. In Chinese culture, it marks the beginning of deep winter and a break from farming in traditional agricultural society. It is also a time for family gatherings. (Xinhua/Cheng Xuehu)