tiller body

例句：

1. 1. The farmer used a tractor to till the soil for planting.
   农民使用拖拉机翻土以种植。
2. 2. The tiller body is crucial for the operation of the tractor.
   翻土机机体对于拖拉机的操作至关重要。
3. 3. The tiller body is designed to improve soil compaction and drainage.
   翻土机机体设计用来改善土壤压实和排水。