铁路帝国

railway engine───火车头

railway engines───火车头

railway guide───铁路导向器

railway line───铁路线；轨道线

railway police───路警

railway company───铁路公司

railway network───[铁路]铁路网，铁路系统

One has to wonder whether like the great British Empire, the world's oldest underground railway has any skeletons.───人们不禁要对像大不列颠帝国这样世界最古老的地下轨道是否也有骨架感到疑惑。