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A cavity is a hole or empty space inside something. The core idea is a hollow sitting inside a solid thing. Doctors talk about the nasal cavity (the space inside the nose) and other body cavities. Dentists use it for a hole in a tooth caused by decay — that is often the first meaning students meet. Scientists and builders use it for a hollow inside a material, a wall, or a machine. It is a fairly neutral, slightly technical word: in casual talk about teeth, people also just say a hole in my tooth.
空洞、腔(如鼻腔);牙醫說的蛀牙的洞也是 cavity
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法,原文照列,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。
cavitynoun/ˈkæv.ɪt.i/
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anatomymedicinesciencesA hole or hollow depression in a solid object.
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businessengineeringmanufacturingA hole or hollow depression in a solid object.
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dentistrymedicinesciencesA small or large hole in a tooth caused by caries; often also a soft area adjacent to the hole also affected by caries.
- Jim got two cavities filled at the dentist's office yesterday.
資料來源:英文維基詞典 English Wiktionary(CC BY-SA 4.0)。 原文照列,未經改寫。