名词
中文翻译：牙粉
同义词：
['dentifrice', 'dental powder']
例句：
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1. She brushes her teeth twice a day with toothpowder.
她每天两次用牙粉刷牙。
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2. The dentist recommended using toothpowder to clean the surface of the teeth.
牙医建议使用牙粉来清洁牙齿表面。
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3. After eating, she used toothpowder to remove any food particles from her teeth.
吃完后，她用牙粉清除牙齿上的任何食物颗粒。