[countable] aroadthatleadsoffahighway（公路的）出口匝道，驶出匝道OPPon-ramp➨ WORD BUILDING 词汇扩充A freeway has at least two lanes going in each direction. There are no traffic lights or intersections on freeways.高速公路每个方向至少有两条车道 (lane)。高速公路上没有红绿灯 (traffic light) 和十字路口 (intersection)。Cars can use off-ramps to leave a freeway, and on-ramps to join it.汽车可以经出口匝道 (off-ramp) 驶离高速公路，经入口匝道 (on-ramp) 驶入高速公路。