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
Excuse me, officer.
对不起 警官。
What did he say in the letter?
他在信里说什么了？
Do you think our manager is going to have a new factory built?
你认为咱们经理会打算建造一家新工厂吗？