German and Chinese guests attend a panel discussion at Sino-German Hi-Tech Dialog Forum in Heidelberg, Germany, April 4, 2019. Hundreds of experts, officials and businessmen from China and Germany gathered here for the 4th Sino-German Hi-Tech Dialog Forum on Thursday to share thoughts on cooperation opportunities between the two countries. The event, hosted by the Sino-German Hi-tech Park, is aimed at providing a communication platform for Sino-German innovation cooperation. (Xinhua/Lu Yang)