Umbelliferone
(=7-hydroxy coumarin)伞形酮, 7-羟基香豆素
🔁 扩展释义
【化】 7-羟基香豆素; 伞形酮【医】 伞形花内酯, 7-羟香豆素
🗣️ 情景例句
I can't put it strongly enouth, I need to make a sale before the end of the week.
我郑重宣布，我要在本周末前搞一次大减价。
I guess he's about 30.
我猜他大概30岁。
She'll come if she can.
如果可能的话，她会来的。