railbed

名词 n.
中文释义

英文释义

名词 n.
  1. The substructure of a railway, underlying the tracks; the roadbed of a railroad.
    — Holonyms: permanent way, right of way

词形变化

railbeds plural rail bed alternative

词源

From rail + bed.
0 次浏览 数据来源: Wiktionary