abradum

例句：

1. 1. The road was covered in a thick layer of tar during the winter months.
   冬季，这条道路覆盖着厚厚的一层沥青。
2. 2. He poured the tar into the pot and stirred it with a wooden spoon.
   他用木勺将沥青倒入锅中并搅拌。
3. 3. The asphalt on the road was slick and difficult to walk on.
   路上的沥青很滑，很难走。