Workers finish the last piece of track of the highspeed section of Qingdao-Jinan highspeed railway in Zouping, east China's Shandong Province, Dec. 30, 2017. The track of the railways's highspeed section was completed on Saturday. With a designed speed of 350 kilometers per hour, the 308-kilometer-long Qingdao-Jinan highspeed railway is expected to be in operation by the end of 2018. (Xinhua/Dong Naide)