Ninja Nation Competition held in Dallas, US
Xinhua
1581347192000

A participant takes part in the Ninja Nation Competition in Dallas, the United States, on Feb. 9, 2020. (Photos: Xinhua)

A participant takes part in the Ninja Nation Competition in Dallas, the United States, on Feb. 9, 2020.

A participant takes part in the Ninja Nation Competition in Dallas, the United States, on Feb. 9, 2020.