柯林斯词典viaduct /ˈvaɪəˌdʌkt/ (viaducts) 1. N-COUNT A viaduct is a long, high bridge that carries a road or a railway across a valley. 高架道路; (架於山穀上的)高架鉄路 返回 viaduct剑桥词典a long , high bridge , usually held up by many arches , that carries a railway or a road over a valley 高架橋；高架道路 a railway viaduct 高架鉄路橋 返回 viaduct