Dentis cavum
[医] 牙腔, 齿腔
🧩 词语组成解析
n. 空腔(如耳腔)
🗣️ 情景例句
She has now held the post of Prime Minister longer than anyone else this century.
她现在担任首相任期之长在本世纪是前所未有的。
Have you washed any dishes?
你洗碗碟吗？
Why not?
为什么？