grid rail;railway network ;
例句:
Similar cost inflation has plagued the network as a whole.
类似的成本上涨也拖累了整个铁路网.
Under a recent agreement the network will even be extended into Portugal.
基于最近的一项协议,铁路网将延伸至葡萄牙.
There is a big underground railway system in London.
伦敦有庞大的地下铁路网.