tube train

短语

n. 地下铁道的列车

词形变化

tube trains 复数 tube trains

释义与例句

n.
  1. 1.

    A smaller-profile underground train which operates through the tube tunnels under London, which have a small cross section.

    英国 交通

词源

Probably named after the shape of the tunnels; the Tube is an informal name for London Underground which has been trademarked.

来源：wiktionary