Photo taken on Oct. 1, 2020 shows Rongjiangbei toll station on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Sept. 29, 2020 shows the Rongjiangbei-Zhaihao section of the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Tao Liang)

Aerial photo taken on Sept. 29, 2020 shows the Qingshui river bridge on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Tao Liang)

Aerial photo taken on Oct. 1, 2020 shows the Qingshui river bridge on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Qingshui river bridge on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Qingshui river bridge on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Sept. 29, 2020 shows the Zhaihao intersection on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Tao Liang)

Aerial photo taken on Oct. 1, 2020 shows the Censong intersection on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Rongjiang section of the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Qingshui river bridge on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Rongjiang section of the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Censong intersection on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Qingshui river bridge on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Oct. 1, 2020 shows the Qingshui river bridge on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Yang Wenbin)

Aerial photo taken on Sept. 29, 2020 shows the Liuchuan intersection on the Jianhe-Rongjiang highway in southwest China's Guizhou Province. The Jianhe-Rongjiang highway, spanning across Sanhui, Jianhe and Rongjiang Counties with a length of about 118 kilometers, started its full-line operation on Thursday. (Xinhua/Tao Liang)