Lactan
[醫] 內酰胺, 酯(音涓)
??? 情景例句
Me, neither.
我也沒有過。
I want to apologize.Is there anything I can do?
我要道歉。我能想點什么辦法嗎？
How long are you planning to stay over here?
你打算在這里呆多久？