Methacholine
[化] 醋甲胆碱\\n[医] 乙酰甲胆硷
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
Sorry to have kept you waiting.
抱歉使你久等了。
The boss's handwriting is terrible!
老板的书写太糟糕了！