A visitor watches a delivery drone at the 2021 World Artificial Intelligence Conference (WAIC) in east China's Shanghai, July 8, 2021. The 2021 WAIC kicked off in China's Shanghai on Thursday. With the theme of "Intelligent Connectivity, Inspirational Cities", this year's conference is aimed to promote global exchange and cooperation, and enhance the common welfare of mankind. More than 10 AI chips, as well as innovative products brought by more than 300 major AI companies, will be shown at the conference, which will last to Saturday. (Xinhua/Hu Zhixuan)