跨省地铁线路的英文：
interprovince subway route

subway是什么意思：
n. 地下铁；地下人行道

I want to get there by subway.
我想乘地铁去那儿。

Use the subway to cross the road.
请走地下通道穿越马路。

homeless people forced to panhandle in subway stations.
无家可归的人们被迫在地铁站里乞讨。

route是什么意思：
n. 路，路程

Which route do you take?
你走哪条路线？

A route or path across or over.
横向路横越或横跨的路线或道路

The route is well signposted throughout...
这条路线全段都清楚地设有路标。