July 16,2018--Zhang Haocheng, a French student studying at Beihang University, speaks at the opening ceremony. (Photo by Luan Haijun) July 16,2018--Participants take a group photo at the opening ceremony. (Photo by Luan Haijun) By: Shi Dongdong |
July 16,2018--Zhang Haocheng, a French student studying at Beihang University, speaks at the opening ceremony. (Photo by Luan Haijun) July 16,2018--Participants take a group photo at the opening ceremony. (Photo by Luan Haijun) By: Shi Dongdong |