TMR

例句：

1. 1. The tractor is the backbone of our farm.
   拖拉机是我们农场的支柱。
2. 2. He has a passion for farming and uses tractors to help with planting.
   他对农业有热情，使用拖拉机帮助种植。
3. 3. The tractor was used to pull the heavy load across the field.
   拖拉机被用来拉动沉重的货物穿越田野。