Perimyelis
[医] 髓周膜, 骨内膜
🗣️ 情景例句
I can't put my finger on what exactly makes a written piece a classic.
我不知道什么使一篇著作成为经典。
It's two blocks straight ahead.
笔直向前走2街区。
How do I look?
我看起来怎么样？