viaductviaduct /ˈvaɪəˌdʌkt/ noun [countable] 
a long high bridge across a valley that has a road or railroad track on it
a long high bridge across a valley that has a road or railroad track on it
| 单词 | viaduct |
| 释义 | viaductviaduct /ˈvaɪəˌdʌkt/ noun [countable] a long high bridge across a valley that has a road or railroad track on it |
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