A contestant prepares at a robot competition held at Tianjin Polytechnic University in north China's Tianjin, Oct. 29, 2017. A total of 286 teams from 16 universities participated in the competition on Sunday. (Xinhua/Shi Songyu)
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A contestant prepares at a robot competition held at Tianjin Polytechnic University in north China's Tianjin, Oct. 29, 2017. A total of 286 teams from 16 universities participated in the competition on Sunday. (Xinhua/Shi Songyu)
