名词
中文翻译：铅笔推压器
同义词：
['pencil sharpener', 'pencil holder']
例句：
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1.The teacher uses a pencil sharpener to keep his pencils sharp.
老师使用铅笔推压器来保持他的铅笔锋利。
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2.She keeps her pen and pencil in a pencil holder so they don't get lost.
她把笔和铅笔放在铅笔夹里，以免它们丢失。
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3. He used the pencil sharpener to make the pencils sharp again.
他用铅笔推压器让铅笔再次变得锋利。