Aerial photos of expressway in China's Guangxi

Photo taken on Dec. 21, 2017 shows an overpass of Lanzhou-Haikou expressway in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, Dec. 21, 2017. According to the 13th five-year plan of Guangxi, expressway mileage in Guangxi will reach 7,000 kilometers. (Xinhua/Lu Boan)