Aerial photo taken on Jan. 5, 2021 shows the Kaizhou Lake grand bridge under construction in southwest China's Guizhou Province. The Kaizhou Lake grand bridge is part of the Weng'an-Kaiyang expressway. With a main span of 1,100 meters, the bridge is 1,257 meters in length and one of its main towers is 139 meters in height. (Xinhua/Liu Xu)