Word · CEFR C1 · Frequency #8851
cavity
龋洞；蛀牙洞
核心释义
A hole or soft decayed area in a tooth, caused by tooth decay (caries).
- 1.
固体中的孔洞或凹陷
A hole or hollow depression in a solid object.
- 2.
大洞(通常在地面上)
a sizeable hole (usually in the ground)
- 3.
龋病引起的牙齿上的洞,常伴有周围软化区域
A small or large hole in a tooth caused by caries; often also a soft area adjacent to the hole also affected by caries.
- 4.
被包围的空间
space that is surrounded by something
- 5.
牙齿的软腐区域；继续腐烂可导致牙齿死亡
soft decayed area in a tooth; progressive decay can lead to the death of a tooth
洞；孔；凹处；腔；室；地洞；深坑；固体中的孔洞或凹陷；大洞(通常在地面上)
用法In use
The dentist found a small cavity in my back molar.
用法提示：此处 cavity 指牙齿上的蛀洞。
Drinking too much soda can lead to cavities if you don't brush regularly.
用法提示：此处 cavities 是 cavity 的复数形式，指多处蛀牙。
She had to get a filling because the cavity had reached the nerve.
用法提示：此处 cavity 指牙齿上因龋齿形成的空洞。
have a cavity
通常指牙齿的龋洞。
I need to see a dentist because I have a cavity.
我需要看牙医，因为我有一个蛀洞。
cavity in [body part]
用于解剖学，指体内的空腔。
相关词与表达Connections
搭配Collocations
- abdominal cavity
- 腹腔
- The surgeon made an incision to access the abdominal cavity.外科医生切开一个口子以进入腹腔。
- nasal cavity
- 鼻腔
- The nasal cavity is lined with mucous membrane.鼻腔内衬有黏膜。
- oral cavity
- 口腔
- Dentists examine the entire oral cavity for signs of disease.牙医检查整个口腔以寻找疾病迹象。
- tooth cavity
- 蛀牙洞
- Brushing regularly helps prevent tooth cavities.定期刷牙有助于预防蛀牙洞。
- cavity wall
- 空心墙
学习提示Learner notes
记忆技巧Memory Tip
将cavity拆解为cave（洞穴）+ ity，牙洞就像一个小洞穴。
语境与语域Context & Register
语域：neutral 常见场景：dentistry、dental care 在牙科领域和日常对话中都常用，属于中性语域。
语法说明Grammar Note
常与介词in或of搭配使用
发音与拼写Pronunciation & Spelling
Pronunciation note: 'cavity' rhymes with 'gravity' (both /ˈkævəti/ and /ˈɡrævəti/ share the same stressed vowel and ending). The other words listed share the spelling ending '-ity' but have different vowel sounds (e.g., 'city' /ˈsɪti/, 'unity' /ˈjuːnəti/) or stress patterns, so they are not perfect rhymes.
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.