China's Dental Care Day marked in Lincheng, Hebei

Students learn the right way to brush teeth at a school in Lincheng County of Xingtai City, north China's Hebei Province, Sept. 18, 2021. China's Dental Care Day falls on Sept. 20. 

Students learn the right way to brush teeth at a school in Lincheng County of Xingtai City, north China's Hebei Province, Sept. 18, 2021. 

A medical worker examines teeth of a student at a school in Lincheng County of Xingtai City, north China's Hebei Province, Sept. 18, 2021. 

Farmers embrace harvest in Yuncheng City, Shanxi People stick to post during Mid-Autumn Festival holiday