Photo taken Dec. 24, 2015 shows a high -speed train in Liuyuan South Station, northwest China's Gansu Province. Saturday marks the one-year anniversary of the operation of the high-speed railway linking Lanzhou, capital of northwest China's Gansu Province, and Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Cai Zengle)
