highway approach

例句：

1. 1. The highway approach iswell-marked with signs and barriers.
   高速公路入口被标志和障碍物很好地标出。
2. 2. The main road approach to thecity is always busy.
   通往城市的主干道入口总是很繁忙。
3. 3. The highwayapproach is a popular destinationfor tourists.
   高速公路入口是游客的热门目的地。