cavity

US /ˈkæv.ə.t̬i/
UK /ˈkæv.ə.t̬i/
"cavity" picture
1.

腔, 洞

a hollow space within a solid object or body

:
The surgeon examined the abdominal cavity.
外科醫生檢查了腹腔。
There was a small cavity in the rock.
岩石上有一個小洞。
2.

蛀牙, 齲洞

a decayed part of a tooth; a dental caries

:
The dentist found a small cavity in my molar.
牙醫在我的磨牙上發現了一個小蛀牙。
Regular brushing helps prevent cavities.
定期刷牙有助於預防蛀牙。