Dentis cavum
[医] 牙腔, 齿腔
🧩 词语组成解析
n. 空腔(如耳腔)
🗣️ 情景例句
What do you do at Universe Toy Company?
你在宇宙玩具公司做什么工作？
A new bicycle is out of the question - we can't afford it.
买新自行车的事谈不上 —— 我们买不起。
Alfred the Great acted his own spy,
阿尔弗雷德大帝曾亲自充当间谍。