名词

1. 高速公路
An expressway is a wide road that is specially designed so that a lot of traffic can move along it very quickly. It is usually divided, so that traffic travelling in one direction is separated from the traffic travelling in the opposite direction.

1. a broad highway designed for high-speed traffic

Synonym: freewaymotorwaypikestate highwaysuperhighwaythroughwaythruway