seed drill harrow

例句：

1. 1. Thefarmer used a seed drill to plant theseeds in the soil.
   农民使用种子钻在土壤中种植种子。
2. 2. Theharrow was used toturn over the soil and loosen it for planting.
   耙子被用来翻动土壤并松土以便种植。
3. 3. The harrow was used to breakup the clods of earth and makeroom for new seeds.
   耙子被用来打破土地的硬块，为新种子腾出空间。