动词
中文翻译：擦除
同义词：
['wipe out', 'erase', 'erase away']
例句：
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1. The eraser was used to remove the marks from the board.
橡皮被用来从黑板上擦掉标记。
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2. She erased all her mistakes before the exam.
她在考试前把所有的错误都擦掉了。
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3. The eraser helped to erase the ink from the paper.
橡皮帮助把纸上的墨水擦掉了。