Basis ossis sacri
[医] 骶骨底
🧩 词语组成解析
basis
['besɪs]
n. 基础;主要成分;基准，基本原则;
骨髓腔
🗣️ 情景例句
and to see Max asleep in his bassinet at home with us.
真高兴看到Max和我们一起 ，睡在家里的摇篮。
They that marry in green, their sorrow is soon seen.
过早地结婚，不久必悔恨。
What do the machines do? asked Jim.
“这些机器做什么用？”吉姆问。