gerund grinder

例句：

1. 1.The grains are ground into flour in this gerund grinder.
   这些谷物在这款磨机中被磨成面粉。
2. 2.The farmer uses a gerund grinder to crush the seeds for planting.
   农民使用一款磨机将种子碾碎以便播种。
3. 3. This gerund grinder is designed to save time and effort in food preparation.
   这款磨机设计用来节省烹饪时间并减少工作量。