translation.en: And I thought to myself, these cabs aren't just numbers, these are GPS recorders driving around in our city streets recording each and every ride they take.
translation.zh: 我在想， 这些出租车不仅仅是一些数据， 它们是行驶在城市街道的 GPS记录器， 记录下每一段它们行驶的路线。