GPS
noun [ U ] uk/ˌdʒiː.piːˈes/ us/ˌdʒiː.piːˈes/
全球卫星定位系统（一种结合卫星及通讯发展的技术，利用导航卫星进行测时和测距，global positioning system的缩写）
abbreviation for global positioning system: a system that can show the exact position of a person or thing by using signals from satellites (= objects in space that send signals to earth)