If you, say, wanted to get from Regent's Park station to Great Portland Street, the Tube map would tell you: take the Tube, go to Baker Street, change over, take another Tube.
比如说，如果你要从摄政公园站 到大波特兰街站，地铁图会告诉你 上车，到贝克街，换乘另一条地铁线