disk cleaner

例句：

1. 1. The disk cleaner is designed to remove scratches from hard drives.
   磁盘清洁器设计用来去除硬盘的划痕。
2. 2.The disk cleaner was used to clean the hard drive before it was sent for repair.
   磁盘清洁器被用来在硬盘送去维修前进行清洁。
3. 3. The disk cleaner can be used to keep your computer running smoothly.
   磁盘清洁器可以用于保持你的电脑运行顺畅。