GPS is a system that tells you where you are on Earth. Satellites send out radio signals; a phone, a car box, or a watch listens to several of them at once and works out your place, often to a few metres. The letters stand for Global Positioning System — first built as a US military tool, now inside ordinary maps, taxis, hiking watches, and “share my location.” People say GPS both for the satellite system and for the little device or the pin on the screen.

GPS is a system that tells you where you are on EarthGPS是一套告訴你你在地球上哪裡的系統。Satellites send out radio signals衛星會發出無線電訊號 a phone, a car box, or a watch listens to several of them at once手機、車用裝置，或手錶會同時接收好幾個訊號 and works out your place, often to a few metres算出你的位置，常常精確到幾公尺之內。The letters stand for Global Positioning System這幾個字母代表Global Positioning System first built as a US military tool一開始是美國軍方建造的工具 now inside ordinary maps, taxis, hiking watches, and “share my location.”現在裝在一般地圖、計程車、登山手錶，以及「分享我的位置」裡 People say GPS both for the satellite system and for the little device or the pin on the screen人們用GPS這個字同時指衛星系統，還有那個小裝置或螢幕上的定位點。

Though actually, your phone map is not only GPS: it also uses phone towers, Wi-Fi, and sometimes other countries’ satellites, but most people still call the whole locating thing GPS. The satellites themselves do not need your mobile data; the map pictures on the screen usually do.

Though actually不過其實 your phone map is not only GPS你的手機地圖不只靠GPS it also uses phone towers, Wi-Fi, and sometimes other countries’ satellites它也用電信基地台、Wi-Fi，有時候還有其他國家的衛星 but most people still call the whole locating thing GPS但大多數人還是把整套定位的東西叫做GPS。The satellites themselves do not need your mobile data衛星本身不需要你的行動數據 the map pictures on the screen usually do但螢幕上的地圖畫面通常需要。

The word is neutral and everyday, as ordinary as “Wi-Fi.” People also stretch it: “What’s the GPS?” meaning “What’s the location?” which is loose but widely understood.

The word is neutral and everyday這個字中性又日常 as ordinary as “Wi-Fi.”就跟「Wi-Fi」一樣普通 People also stretch it人們也會延伸使用它 “What’s the GPS?” meaning “What’s the location?”「What's the GPS?」意思是「位置在哪裡？」 which is loose but widely understood這樣說不太精確，但大家都聽得懂。