The term "5,500米" refers to a distance of 5,500 meters, which is equivalent to 5.5 kilometers. This measurement is commonly used in various contexts, such as athletics, where it may represent the length of a race or a specific distance in training. In the context of geography, 5,500 meters can also refer to elevations, such as mountain peaks. For example, the height of some mountains in the Himalayas or Andes can reach or exceed this distance, making them significant landmarks for climbers and adventurers.