名词
中文翻译：牙膏
同义词：
['dentifrice', 'dental', 'toothpaste']
例句：
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1.She brushes her teeth twice a day to maintain good oral hygiene.
她每天刷牙两次以保持良好的口腔卫生。
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2. The dentist recommended Colgate as the best toothpaste for sensitive teeth.
牙医推荐Colgate作为敏感牙齿的最佳牙膏。
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3. After using Colgate for several weeks, my teeth feel significantly cleaner and fresher.
使用Colgate几周后，我的牙齿感觉明显更干净、更清新。