Medullae
n. 髓, 髓鞘, 髓质\\n[医] 髓[质]
🗣️ 情景例句
Oh, so you don't need something immediately?
呵， 所以你们 ，不是急着马上就要？
Love is the touchstone of virtue.
爱情是美德的试金石。
There should always be exceptions to the rule.
凡事总有例外。