railroad tie

名词 n.
中文释义

英文释义

名词 n.
  1. A heavy, preserved piece of hewn timber laid crossways to and supporting the rails of a railroad or a member of similar shape and function of another material such as concrete. US
    — Holonyms: railroad track, rail track, railway track, train track, permanent way
  2. A long, thin wooden beam used as a border in driveways, to hold in soil in gardens, etc.

词形变化

railroad ties plural
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