barnyard manure

• 动物粪便,圈肥,圈粪

barnyard manure的用法和样例：

例句

1. Digestion of animal manure kills pathogens with the residue available for use as an agricultural fertiliser.
   动物粪便厌氧气化处理可以杀死病原体，灰渣可用作农肥。