A photo taken on April 27, 2020 shows the scenery of Ranwu Lake in Southwest China's Tibet autonomous region. With snow-capped mountains in the distance, the tranquil turquoise blue lake water looks even more picturesque in spring. [Photo/Xinhua]A photo taken on April 27, 2020 shows the scenery of Ranwu Lake in Southwest China's Tibet autonomous region. With snow-capped mountains in the distance, the tranquil turquoise blue lake water looks even more picturesque in spring. [Photo/Xinhua]A photo taken on April 27, 2020 shows the scenery of Ranwu Lake in Southwest China's Tibet autonomous region. With snow-capped mountains in the distance, the tranquil turquoise blue lake water looks even more picturesque in spring. [Photo/Xinhua]A photo taken on April 27, 2020 shows the scenery of Ranwu Lake in Southwest China's Tibet autonomous region. With snow-capped mountains in the distance, the tranquil turquoise blue lake water looks even more picturesque in spring. [Photo/Xinhua]A photo taken on April 27, 2020 shows the scenery of Ranwu Lake in Southwest China's Tibet autonomous region. With snow-capped mountains in the distance, the tranquil turquoise blue lake water looks even more picturesque in spring. [Photo/Xinhua]