Milestones in China's high-speed railway development

Photo taken on Feb. 12, 2016 shows a bullet train running on Tunli grand bridge in Nanning, capital of south China's Guangxi Zhuang Autonomous Region. Guangxi has had a high-speed rail mileage of over 1,700 kilometers since high-speed train introduced into Guangxi at the end of 2013. (Xinhua/Huang Xiaobang)