Medullae
n. 髓, 髓鞘, 髓质\\n[医] 髓[质]
🗣️ 情景例句
He's stepped out of the office for a little while.
他离开办公室刚一会儿。
A poor man who takes a rich wife has a ruler, not a wife.
穷汉娶富妻，必受老婆欺。
I'm not sure we have that much on hand.
我没把握现在的量有没有那么多。