ca
vi
ty
复数形式
cavities
1
腔, 龋齿
a hole in a tooth that is caused by decay
A cavity is a hole that forms in a tooth because of tooth damage. It occurs when bacteria in the mouth produce acids that destroy the tooth enamel, which is the hard outer layer of the tooth. If left untreated, cavities can lead to pain, infection, and even tooth loss. Regular brushing, flossing, and dental check-ups are essential in preventing cavities.
- The dentist found a small cavity on her molar during the routine checkup.
牙医在例行检查中在她的臼齿上发现了一个小蛀洞。
- He felt sharp sensitivity when drinking cold water and worried it might be a cavity.
他喝冷水时感到尖锐的敏感，并担心可能是蛀牙。
- Regular fluoride toothpaste and sealants can help prevent cavities in children's back teeth.
常规含氟牙膏和窝沟封闭剂可以帮助预防儿童后牙的龋齿。
- The filling replaced the cavity and restored the tooth's function.
填充物取代了蛀洞并恢复了牙齿的功能。
- Untreated cavities can deepen and eventually require root canal treatment or extraction.
未经治疗的蛀牙可能会加深，最终需要根管治疗或拔牙。
2
腔, 空洞
a natural empty space or hollow area inside the body
- Air passes through the nasal cavity when breathing.
呼吸时空气通过鼻腔腔。
- The heart sits inside a chest cavity.
心脏位于胸腔腔内。
- Sound echoes in the vocal cavity.
声音在声腔中回响。
- The doctor examined the ear cavity.
医生检查了耳腔。
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