tool grinder sharpener

例句：

1. 1.He uses a tool grinder to sharpen his tools regularly.
   他定期使用工具磨刀器来磨利他的工具。
2. 2.The tool sharpener is an essential tool for any carpenter.
   工具磨刀器是任何木匠必备的工具。
3. 3. The sharpener helps to keep the blades of scissors sharp and prevents them from getting dull.
   磨刀器有助于保持剪刀的刀片锋利，防止它们变钝。