由于这一案件的发生，新州验尸官出面称高速路需要在5年实行双行道（dual carriageway）。不过，现在已经过去21年了，但这条18千米长的高速路仍然未被升级。
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Motorway;Dual Carriageway;Primary Route;Secondary Route;Narrow Road/Street高速公路;双车道;主要路线;辅助路线;狭窄道路/街道 ..
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dual carriageway road 双线车道 ; 复式车行道
dual carriageway road detail 复式车行道
dual carriageway road tunnel 双车道公路隧道
dual-carriageway 复式车行道
dual three-lane carriageway 双向三车道
dual two-lane carriageway 双程双线分隔车路
同义词： divided highway
以上来源于: WordNet
N-COUNT A dual carriageway is a road which has two lanes of traffic travelling in each direction with a strip of grass or concrete down the middle to separate the traffic. 双行道 [英国英语]
The new road runs out shortly afterwards, but a few miles later the main highway turns into a recently completed dual carriageway.
朝前不远新路就结束了，但在几英里以外，干道公路转入一条新近建成的双车道。
But on the outskirts of the city, just off a busy dual carriageway, is the collection of low-rise, landscape-gardened buildings that make up the Cambridge Science Park.
在城市的外围，繁忙的双向车道边，有一片由低层、园林风格的建筑物组成的地方，便是剑桥科技园了。
It would double the length of Colombia’s dual-carriageway roads, continue upgrading Bogotá’s airport, revive railways and expand shipping by boat.
这项计划将使哥伦比亚的双车道道路长度变为原来的两倍，继续升级波哥大机场，重修铁路以及扩充船舶运输。
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