Definition: a strong vehicle with large back wheels used on farms for pulling things Level: C2
他启动了拖拉机。
He started up the ___tractor.
农民现在正在使用像拖拉机这样的机械。
Farmers are now using machinery such as ___tractors.
沉重的犁被一台坚固的拖拉机拉动。
The heavy plough was pulled by a sturdy ___tractor.
