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  1. roadbed

    • IPA[ˈrəʊdbɛd]

    英式

    • n.
      the material laid down to form a road.;the part of a road on which vehicles travel.
    • noun: roadbed, plural noun: roadbeds

    • 釋義

    名詞

    • 1. the material laid down to form a road.
    • the part of a road on which vehicles travel.
    • another term for trackbed
    • 更多解釋
    • IPA[ˈrōdbed]

    美式

    • n.
      the material laid down to form a road.

    Oxford American Dictionary