星级典句：

第一句：Which line goes downtown?
请问哪条线路去市区？

A: Excuse me. Which line goes downtown?
劳驾，请问哪条线去市区。
B: You can take No. 38 or No. 45. Both of the buses will take you there.
你可以乘38路或者45路公交，这两趟车都去市里。

第二句：Which set of subway tracks goes downtown?
请问哪条地铁线去市区？

A: Excuse me. Which set of subway tracks goes downtown?
打扰下，请问哪条地铁线去市区？
B: The third line of subway tracks goes downtown.
三号地铁线去市区。

有关去某地的路线的相关问法还有：

Which line to... 哪一条去……呢？

Where should I transfer? 我该在哪里转乘呢？

May I have a subway map? 请给我一张地铁线图，好吗？

询问去市区也可以直接向司机询问：

Excuse me. Do you go to the downtown? 打扰下，请问去市区吗？