n. an implement used to erase something
n. 擦子
1. I need an eraser to fix my mistakes in the homework.
我需要一个橡皮擦来修正我作业中的错误。
2. She always carries an eraser in her pencil case.
她总是把一个橡皮擦放在她的铅笔盒里。
3. The blackboard was full of chalk, so I used an eraser to clean it.
黑板上满是粉笔，所以我用橡皮擦把它清理干净。