compound barm

例句：

1. 1. The farm uses a variety of compounds barm to enrich the soil.
   农场使用各种混合物饲料来丰富土壤。
2. 2.Compound barm is an excellent source of protein for livestock.
   复合饲料是牲畜蛋白质的良好来源。
3. 3. The farmers mix different compounds barm to create a balanced diet for their animals.
   农民们混合不同种类的复合饲料来为他们的牲畜提供均衡的饮食。