Ballet dancers from The National Ballet of China present ballet basic motions to teachers and students of the University of South China in Hengyang, central China's Hunan Province, on Oct. 13, 2018. Ballet dancers introduce basic knowledge and motion about ballet and stage classical ballets to teachers and students of the university during a yearly art activity. (Photos: Xinhua)

Dancers perform ballet for teachers and students of the University of South China in Hengyang, central China's Hunan Province, on Oct. 13, 2018. Ballet dancers introduce basic knowledge and motion about ballet and stage classical ballets to teachers and students of the university during a yearly art activity.

Dancers perform ballet for teachers and students of the University of South China in Hengyang, central China's Hunan Province, on Oct. 13, 2018. Ballet dancers introduce basic knowledge and motion about ballet and stage classical ballets to teachers and students of the university during a yearly art activity.

Dancers perform ballet for teachers and students of the University of South China in Hengyang, central China's Hunan Province, on Oct. 13, 2018. Ballet dancers introduce basic knowledge and motion about ballet and stage classical ballets to teachers and students of the university during a yearly art activity.