Staff members work at a health bar at Meijiang Convention and Exhibition Center in Tianjin, north China, Sept. 17, 2018. The Annual Meeting of the New Champions of the World Economic Forum (WEF), also known as Summer Davos, is set to kick off on Sept. 18 in Tianjin. This year's forum will feature a theme of "Shaping Innovative Societies in the Fourth Industrial Revolution." (Xinhua/Yue Yuewei)