fungus pit

例句：

1. 1. The fungus pit was filled with decaying leaves and roots.
   这个真菌坑里充满了腐烂的叶子和根。
2. 2.The soil in the forest is rich in nutrients from the mycorrhizal fungi.
   森林里的土壤富含来自菌根真菌的养分。
3. 3. Mycorrhizal fungi play a crucial role in nutrient cycling in ecosystems.
   菌根真菌在生态系统中营养循环中起着至关重要的作用。