toe of slope

例句：

1. 1.The toe of the slope is covered with moss.
   坡脚覆盖着苔藓。
2. 2. The toe of the slope is a place where water collects.
   坡脚是水流聚集的地方。
3. 3. The toe of the slope is where the soil is loose and easy to dig.
   坡脚是土壤松软且容易挖掘的地方。