Jinan-Qingdao high-speed railway to be put into service at end of year

A train attendant talks with passengers on a bullet train running on the Jinan-Qingdao high-speed railway during its test run in east China's Shandong Province on Dec. 17, 2018. The 307.9-kilometer Jinan-Qingdao high-speed railway is expected to be put into service at the end of this year. (Xinhua/Dong Naide)