yard tractor

例句：

1. 1. The farmer used a yard tractor to pull his cart across the field.
   这位农民用一台拖拉机把他的马车拖过田野。
2. 2. The tractor was old and needed repairs.
   那台拖拉机旧了，需要修理。
3. 3. The tractor's engine sputtered as it struggled to start in the cold weather.
   在寒冷的天气里，这台拖拉机发动机发出嘶嘶声，难以启动。