(Photo: Xinhua)

A teacher with a vocational school in Anshan, Liaoning province, teaches online. (Photo/Xinhua)

A Physics teacher gives an online tuition to students at Hefei NO. Eight Senior High School in Hefei, East China's Anhui province, Feb 3, 2020. (Photo/Xinhua)

A family in Chongqing exercises at home. (Photo: Wang Quanchao/Xinhua)

Doctors from the General Hospital of Ningxia Medical University provide online medical consultation services. (Photo/Xinhua)