vi·a·duct
noun/ˈvaɪədʌkt/
/ˈvaɪədʌkt/
- a long, high bridge, usually with arches, that carries a road or railway across a river or valley
enlarge image高架桥（通常有拱，横跨河道或山谷连通公路或铁路） - A train was crossing the viaduct.
一列火车正在穿过高架桥。 - a railway viaduct over the river
河上的铁路高架桥
Oxford Collocations DictionaryViaduct is used after these nouns:- railway
Word Originearly 19th cent.: from Latin via ‘way’, on the pattern of aqueduct. - A train was crossing the viaduct.