Cavum medullare
[医] 髓腔
🧩 词语组成解析
n. 空腔(如耳腔)
🗣️ 情景例句
Hi, gang. Hi, everybody.
嗨 ，各位。
They that sow in tears shall reap in joy.
泪水汪汪播种，得意洋洋收获。
Captain Fawcett has just refused a strange request from a businessman.
弗西特机长刚刚拒绝了一位商人的奇怪要求。