名词
中文翻译：根尖
同义词：
['root tip', 'apical root', 'apex of the root例句：1. The doctor removed the infected tooth and saved the healthy one.（医生拔除了感染的牙齿，保存了健康的牙齿。）']
例句：
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1. The doctor removed the infected tooth and saved the healthy one.
医生拔除了感染的牙齿，保存了健康的牙齿。
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2.The root canal treatment is essential for maintaining oral health.
根管治疗对于维护口腔健康至关重要。
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3. The roots of the tree are visible through the soil.
通过土壤可以看到树根。