silkworm faeces

例句：

1. 1.The silkworm faeces is a rich source of protein and nutrients for the soil.
   丝状真菌粪便是土壤中富含蛋白质和养分的来源。
2. 2. The silkworm faeces can be used as fertilizer to improve the quality of the soil.
   丝状真菌粪便可以用作肥料，以提高土壤的质量。
3. 3.The silkworm faeces is also an important source of food for many animals.
   丝状真菌粪便也是许多动物的重要食物来源。