Song Jiyuan poses with a robot adept in interpreting sign language at a makerspace of the National University Science Park of Henan Province in Zhengzhou, capital of central China’s Henan Province, Feb. 23, 2017. The robot, developed by Song Jiyuan, a student from mechanical engineering department of Zhengzhou University, and his classmates, can quickly interpret sign language as well as translating voice into sign language.