Actresses of China's Korean ethnic group perform at the 12th China-Northeast Asia Expo in Changchun, Northeast China's Jilin province, Aug 23, 2019. The five-day expo themed on "enhancing mutual trust and cooperation to create beautiful prospects for Northeast Asia" opened on Aug 23 in the city of Changchun. [Photo/Xinhua]
People visit the 12th China-Northeast Asia Expo in Changchun, Northeast China's Jilin province, Aug 23, 2019. [Photo/Xinhua]
Visitors taste foods at the Mongolian pavilion at the 12th China-Northeast Asia Expo in Changchun, Northeast China's Jilin province, Aug 23, 2019. [Photo/Xinhua]
A visitor experiences a 5G synchronous-control-system-supported robot at the 12th China-Northeast Asia Expo in Changchun, Northeast China's Jilin province, Aug 23, 2019. [Photo/Xinhua]
A college student volunteer operates an AR mechanical arm at the 12th China-Northeast Asia Expo in Changchun, Northeast China's Jilin province, Aug 23, 2019. [Photo/Xinhua]
