C2 noun #73,536 最常用

A main railway line which usually forms the backbone of a rail network.

trunk line 30秒了解

  • (noun) A main railway line which usually forms the backbone of a rail network.
  • (noun) The main line of a canal, from which other sections diverge.

Meanings

  1. 1
    noun A main railway line which usually forms the backbone of a rail network.
  2. 2
    noun The main line of a canal, from which other sections diverge.
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