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  1. trench mortar

    • IPA[trenCH ˈmôrdər]
    • n.
      a light simple mortar designed to propel a bomb into enemy trenches.
    • noun: trench mortar, plural noun: trench mortars

    • 更多解釋
    • n.
      a light simple mortar designed to propel a bomb into enemy trenches.

    Oxford Dictionary