大雨过后，小路上覆盖着厚厚的泥浆。

After the heavy rain, the path was covered in thick ___mud.

徒步者滑了一跤，靴子陷进了深深的泥里。

The hiker slipped and got his boots stuck in the deep ___mud.

车上的泥干了以后，形成了一层坚硬、龟裂的外壳。

Once the ___mud on the car dried, it formed a hard, cracked layer.