A-road

#牛津词典回顶部

 noun

• （英国）干线公路，A级公路（略次于高速公路，但较B级公路宽直）
  (in Britain) a road that is less important than a motorway , but wider and straighter than a B-road

#柯林斯词典回顶部

• A级公路;主干公路
  In some countries, an A-road is a major road. A-roads are narrower than motorways but are wider and straighter than B-roads.