Rats are synonymous with the New York City subway system, and riders have been confronted by them in various ways over the years.

老鼠就是纽约地铁系统的代名词，乘客们一年中会以各种方式遇见老鼠。

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Officials believe the three were planning attacks with portable but powerful explosive devices like the ones involved in last year's thwarted attack on the New York City subway system.

官员们相信，这3人计划发动一起类似去年在纽约市袭击地铁系统所涉及的便携但威力强大的爆炸装置。

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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.

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。

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Jerry began telling stories about the building of the New York City subway.

NEWYORKER: Brooklyn Circle

Finally, "Step Lively" makes clear what happens if you don't watch the closing doors on the New York City subway.

NPR: Steve Wilson: A First-Call Saxophonist

The New York City subway, opened in 1904, is one of the few public transit systems worldwide that runs 24 hours a day, seven days a week.

BBC: Subway systems by the numbers