Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)
Photo taken on Jan. 6, 2017 shows the bridge construction site of the south section of a ring road near the Potala Palace in Lhasa, capital of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)