Aerial photo shows the Laopo interchange of Jinan-Tai'an expressway in east China's Shandong Province, Oct. 27, 2020. The expressway linking Jinan and Tai'an in east China's Shandong Province was put into operation on Tuesday. The expressway will shorten the travel time between the two places to half an hour after its operation. (Xinhua/Zhu Zheng)
