【美铁 Amtrak】美铁运营路线及区域介绍（Learn All About Amtrak's Routes & Regions）

https://www.youtube.com/watch?v=PolMQI9J-EE
Amtrak trains travel to incredibly scenic landscapes all across the USA. See which routes take you cross-country in Coach Class and in the Sleeper Car, then start planning your family vacation by rail.