A train runs on the Congjiang section of the Guiyang-Guangzhou high-speed railway in Congjiang County, southwest China's Guizhou Province, March 4, 2020. (Xinhua/Yang Wenbin)

A man takes photos of the scenery near the Congjiang railway station in Congjiang County, southwest China's Guizhou Province, March 4, 2020. (Xinhua/Yang Wenbin)

A train runs on the Congjiang section of the Guiyang-Guangzhou high-speed railway in Congjiang County, southwest China's Guizhou Province, March 4, 2020. (Xinhua/Yang Wenbin)

A train runs on the Congjiang section of the Guiyang-Guangzhou high-speed railway in Congjiang County, southwest China's Guizhou Province, March 4, 2020. (Xinhua/Yang Wenbin)

A train runs on the Congjiang section of the Guiyang-Guangzhou high-speed railway in Congjiang County, southwest China's Guizhou Province, March 4, 2020. (Xinhua/Yang Wenbin)

A train runs on the Congjiang section of the Guiyang-Guangzhou high-speed railway in Congjiang County, southwest China's Guizhou Province, March 4, 2020. (Xinhua/Yang Wenbin)