名词
中文翻译：磨刀机
同义词：
['sharpening device', 'sharpener']
例句：
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1.This sharpening machine is very useful for cleaning knives.
这台磨刀机对于清理刀具非常有用。
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2.The sharpening machine has been a lifesaver for my family.
这台磨刀机对我们的家庭来说是一个救星。
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3.I bought this sharpening machine as a gift for my father-in-law.
我买了这台磨刀机作为给岳父的礼物。