泥沼

例句：

1. 1.The squirrel was trappedin the mud of the swamp.
   松鼠被困在沼泽的泥里。
2. 2. Theriver flows through several swamps and marshes.
   河流流经几个沼泽和湿地。
3. 3. The farmer had todig his way out of the muddyswamp.
   农民不得不挖出泥泞的沼泽。