Sciatic spine
[医] 坐骨棘
🧩 词语组成解析
a. 髋部的, 坐骨的, 坐骨神经的\\n[医] 坐骨的
spine
[spain]
n. 脊柱;脊椎;（动植物的）刺;书脊;
🗣️ 情景例句
Littering makes the city look like a garbage dump.
随地乱扔垃圾使城市看起来就像个大垃圾堆。
It's certainly a big improvement over yestterday.
肯定比昨天大有好转。
Most business letters around the world are written in English.
世界上大多数商务信函都是用英语写的。