railroad track
短语铁路轨道
词形变化
railroad tracks
复数
railroad tracks
释义与例句
n.
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1.
A pair of formed steel rails, separated and supported usually on wooden or concrete ties or sleepers, forming a track along which flange-wheeled railroad vehicles may travel.
美国 交通Holonym: permanent way
Meronyms: rail, railroad tie, railway tie, railway sleeper, sleeper