Photo taken on Aug. 25, 2019 shows the site of the Smart China Expo at Chongqing International Expo Center in Chongqing, southwest China. The Smart China Expo (SCE) is held from Aug. 26 to Aug. 29 in Chongqing International Expo Center. With the theme of "Smart Technology: Empowering Economy, Enriching Life", SCE 2019 will focus on a series of events including conferences, exhibitions, contests and forums. (Xinhua/Wang Quanchao)