cropping die

例句：

1. 1. The farmer used a cropping die to cut the grass.
   农民使用收割机刀片来割草。
2. 2. The cutting die is essential for the operation of the machine.
   切割刀片是机器运行所必需的。
3. 3. The farmer needs to replace the cropping die regularly to ensure the quality of the crops.
   农民需要定期更换收割机刀片，以确保农作物的质量。