名词
中文翻译：电动牙刷
同义词：
['electric toothbrush', 'electric tooth cleaner', 'electric tooth scaler']
例句：
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1.I need to buy an electric toothbrush for my son.
我需要给我儿子买一个电动牙刷。
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2. The electric toothbrush is very effective in removing plaque from the teeth.
电动牙刷在去除牙菌斑方面非常有效。
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3. She switched to using an electric toothbrush instead of a manual one.
她改用电动牙刷而不是手动的了。