乘客只有在正式车站方可上下车。

Passengers may be set down and picked up only at the official stops.

这样方便上下车，因为出入是经由大型透明门(泡泡车传统意义上的入口)从前面进行的。

That makes it easier to get in and out, for access is from the front via a large, transparent door-a traditional means of ingress for bubble cars.

旅客上下车的地点通常集中在交通集散地，像纽约市的宾夕法尼亚站，或者华盛顿的地铁中心站。

Pickup and drop-off points are usually near transportation hubs, like Pennsylvania Station in New York City, or the Metro Center subway stop in Washington.