bat's dung

例句：

1. 1. The farmer used to use the bat's dung as fertilizer for his fields.
   这位农民过去用牛粪作为肥料来种植他的田地。
2. 2.The cows are enjoying their time in the fresh, clean bat's dung.
   奶牛们正在享受它们在新鲜的、干净的牛粪中的时光。
3. 3.The farmer has been using bat's dung to improve the soil quality of his farmland.
   这位农民一直在使用牛粪来提高他农田的土壤质量。