An activity themed on "winter sports into school" takes place on Dec 23 in the west campus of Hai'an Chengnan Experimental Elementary School, located in the county-level city of Hai'an in Nantong, in East China's Jiangsu province. [Photo/CFP]

Boys and girls learn more about Olympic winter games by participating in sports such as roller skating and land curling, as the 2022 Beijing Winter Olympics fast approaches. [Photo/CFP]

Students compete fiercely in a roller skating match. [Photo/CFP]