Video PlayerClose

An exhibitor slices traditional Chinese herbs at the Traditional Chinese Medicine Industry Expo in Longxi County of Dingxi City, northwest China's Gansu Province, Sept. 26, 2017. (Xinhua/Guo Gang)

An exhibitor slices traditional Chinese herbs at the Traditional Chinese Medicine Industry Expo in Longxi County of Dingxi City, northwest China's Gansu Province, Sept. 26, 2017. (Xinhua/Guo Gang)