High-speed rail connects major cities in southwest China's mountainous regions

Photo taken on Dec. 16, 2019 shows a welcome sign of the Chengdu-Guiyang railway at Guiyang North Station in southwest China's Guizhou Province. The 648-km-long Chengdu-Guiyang high-speed rail line, an important part of China's ambitious plan to build a high-speed railway network across the country, was launched on Monday. The rail line links Guiyang, capital of southwest China's Guizhou Province, and Chengdu, capital of Sichuan Province. (Xinhua/Liu Xu)