tar asphalt mixture

例句：

1. 1. The road was paved with tar.
   这条道路是用沥青铺成的。
2. 2. Tar is used to make roads and highways.
   沥青用于制造道路和高速公路。
3. 3. The tar on the road has been washed off by the rain.
   路上的沥青被雨水冲掉了。