Medulla spinalis
[医] 脊髓
🧩 词语组成解析
medulla
[mi'dʌlə]
n. （拉丁语）骨髓;
棘肌
🗣️ 情景例句
Thank you.
谢谢你 。
The day is long to him who knows not how to use it.
百无聊赖。
My knee hurts, my foot hurts and my head too.
我的膝盖伤了，脚伤了，还有头。