Photo taken on April 4, 2016 shows the scenery of Lhasa-Nyingchi High Grade Highway in Nyingchi City, southwest China's Tibet Autonomous Region. The Lhasa-Nyingchi High Grade Highway, which starts from Lhasa, capital of southwest China's Tibet Autonomous Region, and ends at Bayi Town of Nyingchi City, has a length of 409.2 kilometers. (Xinhua/Purbu Zhaxi)