名词
中文翻译：笔刷
同义词：
['eraser', 'eraser pen']
例句：
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1. The teacher used a penwiper to clean the blackboard.
老师用一个笔刷来擦黑板。
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2. She wiped her glasses with a penwiper before she read the book.
她在看书前用笔刷擦了擦眼镜。
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3. The student used a penwiper to clean the desk before the exam.
学生在考试前用笔刷清理了桌子。