A staff member from a tourism company introduces the cruise tour service during the Xi'an Silk Road International Tourism Expo in Xi'an City, capital of northwest China's Shaanxi Province, Aug. 4, 2017. The 2017 China Xi'an International Tourism Expo was held at Qujiang International Conference and Exhibition Center on Friday. Exhibitors and visitors from 32 countries and regions attended this event. (Xinhua/Shao Rui)
