Stewardesses pose on the platform at Zhengzhou East Railway Station in Zhengzhou, central China's Henan Province, July 9, 2017. The high speed railway linking Zhengzhou of Henan and Lanzhou of northwest China's Gansu started operation formally on Sunday. The shortest travel time of the railway between Zhengzhou and Lanzhou was shortened to less than five hours. (Xinhua/Li An)
