Pic story: train in northwest China's Gansu serves as commuter train for 60 years

An attendant serves passengers on a train linking Longxi County of Dingxi City and Zhangjiachuan County of Tianshui City in northwest China's Gansu Province, Feb. 1, 2019. The train, running at a speed about 60 kilometers an hour, serves as a commuter train for the local residents in the past 60 years. (Xinhua/Chen Bin)