Ross corrector

例句：

1. 1.The Ross corrector is a device used to improve the quality of written English.
   罗斯校正器是一种用来提高书面英语质量的设备。
2. 2. The Ross corrector has been shown to be effective in improving students' writing skills.
   罗斯校正器已被证明在提高学生的写作技能方面是有效的。
3. 3.The Ross corrector is widely used in schools and universities around the world.
   罗斯校正器在全球范围内的许多学校和大学中广泛使用。