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, May 8, 2018. The World Smile Day is celebrated on May 8 every year. (Xinhua/Liu Peiran)
World Smile Day marked across China
Source: Xinhua| 2018-05-08 16:20:26|Editor: ZX
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