A high-speed train runs on a viaduct in Tianyang County, south China's Guangxi Zhuang Autonomous Region, on Dec. 11, 2015. The Nanning-Bose section of the passenger railway connecting Nanning , capital of Guangxi, and Kunming, capital of the neighbouring Yunnan Province, was open to operation on Friday. The section is 223 kilometers long with the operation speed of 200 kilometers per hour. (Xinhua/Wei Wanzhong)
