World Smile Day marked across China

Children show smile signs made of vegetables and fruits to celebrate the World Smile Day at No. 1 Kindergarten in Shijiazhuang, capital of north China's Hebei Province on May 8, 2018. The World Smile Day is celebrated on May 8 every year. 

Children make smile signs with vegetables and fruits to celebrate the World Smile Day at No. 1 Kindergarten in Shijiazhuang, capital of north China's Hebei Province on May 8, 2018. 

Tour guides pose with smile signs to celebrate the World Smile Day at the Slender West Lake scenic area in Yangzhou City, east China's Jiangsu Province on  May 8, 2018. 

Tour guides show smile signs to celebrate the World Smile Day at the Slender West Lake scenic area in Yangzhou City, east China's Jiangsu Province on May 8, 2018. 

Tour guides pose with smile signs to celebrate the World Smile Day at the Slender West Lake scenic area in Yangzhou City, east China's Jiangsu Province on May 8, 2018. 

Children make smile signs with vegetables and fruits to celebrate the World Smile Day at No. 1 Kindergarten in Shijiazhuang, capital of north China's Hebei Province on May 8, 2018. 

Students show smiley cards to celebrate World Smile Day at a primary school in Shijiazhuang, capital of north China's Hebei Province on May 8, 2018.

Students show smiley cards to celebrate World Smile Day at a primary school in Shijiazhuang, capital of north China's Hebei Province on  May 8, 2018.