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