Medullary sheath
[医] 髓鞘
🧩 词语组成解析
a. 骨髓的, 髓质的, 延髓的\\n[医] 髓的, 髓状的
sheath
[ʃi:θ]
n. 护套;鞘;叶鞘;紧身装;
v. 包，盖;
🗣️ 情景例句
You should take the number 1 train to Van Cortlandt Park.
搭一路车到Van Cortlandt公园下车。
Public money is like holy water, every one helps himself to it.
公款如圣水，人人都要尝一嘴。
This is a sceptical age,
这是一个怀疑一切的时代，