A bullet train leaves the Baoji South Railway Station in Baoji, northwest China's Shaanxi Province, July 9, 2017. The high speed railway line linking Baoji and Lanzhou, capital of northwest China's Gansu Province, was officially put into operation on Saturday. It will cut travel time from Lanzhou to Xi'an, capital of Shaanxi, from 6 to 3 hours. (Xinhua/Tang Zhenjiang)
