Compare that with the device released just months ago that's now packaged into something the size of a key fob, and if you take a look at the state of the art for a complete GPS receiver, which is only a centimeter on a side and more sensitive than ever, you realize that the GPS dot will soon move from fiction to nonfiction.
对比一下几个月前刚出的新仪器， 跟钥匙袋差不多大。 如果我们再来看看最先进的完整的GPS接收器， 它边长只有一厘米， 比以往都更灵敏。 我们就会意识到，GPS点将很快 从虚构变成现实。