Lactan
[医] 内酰胺, 酯(音涓)
🗣️ 情景例句
Me, neither.
我也没有过。
I want to apologize.Is there anything I can do?
我要道歉。我能想点什么办法吗？
How long are you planning to stay over here?
你打算在这里呆多久？