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Competitors Song Yiru (L) and Li Yitong debug robots during the 20th National Robot and Artificial Intelligence Competition (NRAIC) in Shunde District of Foshan, south China's Guangdong Province, Oct. 24, 2018. The competition kicked off here on Wednesday. More than 200 teams from 78 Chinese colleges will take part in 49 competition events under 13 categories. (Xinhua/Liu Dawei)
