Photo taken on July 8, 2020 shows the scenery of Tengger Desert in Alxa Left Banner, north China's Inner Mongolia Autonomous Region. Tengger Desert, covering an area of about 43,000 square kilometers, is the fourth largest desert in China. (Xinhua/Lian Zhen)

Photo taken on July 8, 2020 shows the scenery of Tengger Desert in Alxa Left Banner, north China's Inner Mongolia Autonomous Region. Tengger Desert, covering an area of about 43,000 square kilometers, is the fourth largest desert in China. (Xinhua/Lian Zhen)

Photo taken on July 8, 2020 shows the scenery of Tengger Desert in Alxa Left Banner, north China's Inner Mongolia Autonomous Region. Tengger Desert, covering an area of about 43,000 square kilometers, is the fourth largest desert in China. (Xinhua/Lian Zhen)

Photo taken on July 8, 2020 shows the scenery of Tengger Desert in Alxa Left Banner, north China's Inner Mongolia Autonomous Region. Tengger Desert, covering an area of about 43,000 square kilometers, is the fourth largest desert in China. (Xinhua/Lian Zhen)