Medullated fibers
[醫] 有髓神經纖維
?? 詞語組成解析
a. 有髓的\\n[醫] 有髓[鞘]的
n. 纖維（fiber的復數）
??? 情景例句
How much will it be?
要多少錢？
She's free on Friday and Saturday.
她周五和周六有空。
I was very tired this morning. I couldn't get up.
我早上很累，起不來。