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Youth robot festival held in C China's Hunan

Source: Xinhua| 2018-05-06 15:29:14|Editor: ZX
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#CHINA-HUNAN-YOUTH ROBOT FESTIVAL (CN)

A child operates a drone during a youth robot festival in Longhui County, central China's Hunan Province, May 5, 2018. (Xinhua/Zeng Yong)

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