Cavum protovertebrae
[医] 原椎腔
🧩 词语组成解析
n. 空腔(如耳腔)
🗣️ 情景例句
He started out on a voyage around the world.
他开始周游世界。
I will be in between six and eight.
我6点至8点都在。
The hardened professional smuggler, on the other hand, is never troubled by such feelings, even if he has five hundred gold watches hidden in his suitcase.
而老练的职业走私犯却使手提箱里藏着500只金表，却也处之泰然。