(North American English)an underground railway system in a city地铁；地铁交通
the New York subway纽约地铁
a subway station/train地铁站／列车
a downtown subway stop闹市区的地铁站
to ride/take the subway乘地铁
In Boston the subway is known as the ‘T’; in Washington DC it’s the‘Metro’.在波士顿，地铁被称为“ T”。在华盛顿特区，它是“地铁”。
British/American underground / subway / metro / tubeunderground / subway / metro / tube
A city’s underground railway system is usually called the underground (often the Underground) in British English and the subway in North American English. Speakers of British English also use subway for systems in American cities and metro for systems in other European countries. The Metro is the name for the systems in Paris and Washington, D.C. London’s system is often called the Tube.
Extra Examples
I've never been on the subway.我从来没坐过地铁。
Yankee Stadium is a 40-minute subway ride from our house.从我家到扬基体育场乘地铁要 40 分钟。
