Photo taken on May 21, 2016 shows a small robot toy designed by Harbin Institute of Technology (HIT) Robot Group in Harbin, capital of northeast China's Heilongjiang Province. HIT Robot Group, short as HRG, was co-sponsored by the local governments and Harbin Institute of Technology in December 2014. Its application covers such fields as smart city, catering, filming, health care, anti-terrorism and aerospace and etc. (Xinhua/Wang Kai)