asphalt intermediate course

例句：

1. 1. The road was paved with asphalt to improve its durability.
   为了提高其耐用性，这条路被铺上了沥青。
2. 2.Asphalt is a popular material for building roads and bridges.
   沥青是一种常用的建筑材料，用于建造道路和桥梁。
3. 3. The asphalt surface on the highway was slick with rainwater.
   高速公路上的沥青表面因为雨水而变得湿滑。