Students of Zhejiang University of Technology are on a torch relay run during a celebration of the Youth Day, which falls on May 4, in Hangzhou, East China’s Zhejiang province, May 3, 2017. [Photo/Xinhua]

Students of Zhejiang University of Technology perform during a celebration of the Youth Day, which falls on May 4, in Hangzhou, East China’s Zhejiang province, May 3, 2017. [Photo/Xinhua]

Students of Zhejiang University of Technology are on a torch relay run during a celebration of the Youth Day, which falls on May 4, in Hangzhou, East China’s Zhejiang province, May 3, 2017. [Photo/Xinhua]