名词
中文翻译：营养补充剂
同义词：
['supplements', 'vitamins', 'nutrients']
例句：
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1.Tonics are essential for maintaining good health.
补充剂对于保持健康至关重要。
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2.The doctor prescribed a tonic for her to help her recover.
医生给她开了一种补品，帮助她恢复健康。
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3.She took the tonic daily to boost her immune system.
她每天服用这种补品来增强免疫系统。