Ma Xueting serves passengers on a train on the Lanzhou-Urumqi High-speed Railway earlier this month. Ma Xueting, 31, of the Hui ethnic group, born and raised in Qinghai, started working for the railway in October 2014, and is currently a train conductor of a Fuxing high-speed train. Now, passenger trains run on the high-speed railway, with direct trains from Xining …