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Teacher Guo Jing (R) demonstrates fencing skills to students at No. 34 Middle School in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Nov. 13, 2017. (Xinhua/Wang Zheng)

Teacher Guo Jing (R) demonstrates fencing skills to students at No. 34 Middle School in Hohhot, capital of north China's Inner Mongolia Autonomous Region, Nov. 13, 2017. (Xinhua/Wang Zheng)