raw humus

例句：

1. 1.The farmer used to till the soil with a pitchfork every morning.
   这位农民以前每天早上用叉子翻地。
2. 2. The gardener loves to use organic humus to fertilize his plants.
   园丁喜欢使用有机腐殖土来给植物施肥。
3. 3.The soil in this area is rich in raw humus and nutrients.
   这个地区的土壤富含原始腐殖土和养分。