Photo taken on July 9, 2017 shows the Baihe Bridge on the Zhengzhou-Wanzhou high-speed railway under construction in the border area between central China's Hubei Province and Henan Province. The 818-km railway, which links Zhengzhou in central China's Henan Province and Wanzhou in southwest China's Chongqing Municipality, will be put into operation in 2022. (Xinhua/Du Huaju)
