The leader of a Chinese surveying team Tsenor (L) receives congratulations after the team completed the mission of remeasuring the height of Mount Qomolangma and safely descended to the Mount Qomolangma base camp, on May 28, 2020. A Chinese surveying team safely descended to the Mount Qomolangma base camp at an altitude of 5,200 meters Thursday, after completing the mission of remeasuring the height of the world's highest peak. (Xinhua/Sun Fei)