root plow

例句：

1. 1.The farmer used a root plow to break up the soil for planting.
   农民使用根犁来翻松土壤以便种植。
2. 2.The old man spent his days tilling the soil with a root plow.
   那位老人用根犁翻土度过他的每一天。
3. 3. The farmer's son is learning how to use a root plow from his father.
   农民的儿子正在学习如何使用根犁，他的父亲教他。