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
Hey, let's go out and have some fun tonight.
嘿，咱们今晚出去玩儿吧。
Love and business teach eloquence.
爱情和买卖可以培养口才。
You two seem to know each other.
你们俩似乎认识。