the tools and machines used in farm operations

例句：

1. 1. He spent hours sharpening his tools to make the job easier.
   他花了很多时间磨砺他的工具，以便使工作更容易。
2. 2. The farmer used a variety of tools to plant and harvest crops.
   农民使用各种工具来种植和收获作物。
3. 3. Tools are essential for any task that requires manual labor.
   任何需要手工劳动的任务都需要工具。