【1分pk10_pk10交流群_1分pk10交流群】Community in China's Hebei opens science, technology courses for students during summer vacation

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A student assembles a robot at Zhixiang Robot Makers' Center of Yong'an street community in Chengde City, north China's Hebei Province, July 25, 2019. The community opened science and technology courses for local students during the summer vacation. (Xinhua/Wang Xiao)

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