经典句子：

Where is the nearest subway/metro station?

最近的地铁站在哪里啊?

Just across the street.就在对面啊。

Let’s take the escalator down to the station.

我们乘扶梯下去吧。

Check the route first. 先查一下线路。

Which subway line do we need to take? line 2.

我们乘几号线呢？2号线。

The train is bound for the airport. 这列车是开往机场的。

Tap the （metro）card. 刷卡。

Step behind the yellow/safety line. 退到黄线后面。

The train is coming. 车来了。

Watch your step. 当心脚下。

How many more stops are left? 还剩下几站啊？

Three stops from here. 还有三站。

So fast.好快啊。

There is no traffic jam underground. 地下没有交通拥堵。