Cavity
01
空洞, 虫歯
a hole in a tooth that is caused by decay
例
The dentist found a small cavity on her molar during the routine checkup.
歯科医は定期検診中に彼女の臼歯に小さな虫歯を見つけました。
02
空洞, 腔
a natural empty space or hollow area inside the body
例
The doctor examined the ear cavity.
医者は耳の空洞を検査しました。
