viaduct

viaduct — noun

1. a long bridge whose roadway is supported by a row of arches or columns, crossing

1.名詞B2
釋義

a long bridge whose roadway is supported by a row of arches or columns, crossing a wide valley or low area

例句

The old stone viaduct near Liang's village still carries trains across the river every day.

carry + train/road across [obstacle]

Gabriel and his classmates studied the Roman viaduct for their history project.

同義詞
  • overpass

    a shorter structure that carries one road over another, usually in a city

  • trestle

    a bridge supported by a framework of beams, often used for railways

文法句型

a/the viaduct

用法筆記

A viaduct is distinguished from a simple bridge by its length and repeated supporting arches or spans. For a short bridge over a narrow gap, use 'bridge' rather than 'viaduct'.

常見錯誤

❌The train crossed a small viaduct over the creek.
✅The train crossed a small bridge over the creek.
💡A viaduct is for long spans across wide valleys, not narrow creeks.