trackbed

名词 n.
中文释义
英 /ˈtɹækbɛd/    美 /ˈtɹækbɛd/

英文释义

名词 n.
  1. The layer of gravel or other foundation on which a railway track is laid.
    — Given a mandate to build a new railway from the trackbed up, the Japanese have seized an unprecedented opportunity, not only to apply to its equipment their immense technological resources, but to incorporate in its operational scheme the Utopian concepts which those modernising an existing line can at best realise partially.
  2. The land on which a railway (especially one that has been closed or dismantled) was built; the roadbed for a railroad. broadly
    — Holonym: right of way

词形变化

trackbeds plural track-bed alternative track bed alternative

词源

From track + bed (“place, or flat surface or layer, on which something else rests or is laid”).
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