A kid demonstrates a handmade smiley card to greet the upcoming World Smile Day at a kindergarten in Zhenjiang, east China's Jiangsu Province, May 7, 2019. World Smile Day is celebrated on May 8 every year. (Xinhua/Shi Yucheng)
World Smile Day marked in China
Source: Xinhua| 2019-05-07 22:34:27|Editor: mingmei
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