A visitor takes photos of robots at the 18th China-ASEAN Expo in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Sept. 13, 2021. The 18th China-ASEAN Expo closed on Monday. Inaugurated in 2004, the annual expo is an important platform for promoting trade and bilateral relations between China and ASEAN. (Xinhua/Zhou Hua)
