乘地铁的相关表达:
1. subway 地铁
2. token代币
3. single ride单程票,单程
4. the el 轻轨,高架铁路
5. elevated 轻轨,高架的
seven steps:
step1 buy a ticket or token买一张票或者是代币
step2 check out the map查地图看看去哪儿
step3 swipe card and go through the turnstile 刷卡走过旋转门
step4 wait for the train but don't talk to strangers等火车但不要和陌生人说话
step5 get on and enjoy the ride上车享受旅程
step6 get off下车
step7 exit出口