cavity
🇺🇸
/ˈkævəti/
🇬🇧
/ˈkævəti/
A hollow space inside something solid
The doctor found a cavity in the patient's abdomen during the scan.
醫生在掃描中發現患者腹部有一個空腔。
A hole in a tooth caused by decay
If you don't brush properly, you might get a cavity in your tooth.
如果你不好好刷牙,牙齒可能會蛀一個洞。