ROADM可重构光分插复用器roadn.路；道路；途径；方法road railer卡轨车road mirror路镜(设于马路转弯处以防止车辆碰撞)road binder路面粘结料road reform道路改造road shaper路面整修机roadabilityn.车辆行驶安定性能road bridge公路桥road harrow路耙road factor道路因素road tunnel公路隧道

1. Difficulties in finding parking lots,arid the cost of petrol and road tax all add to the driver's worries.
   寻找车位的困难，使用汽油的花费和需交纳公路税等问题都增添了驾驶者的烦恼。