Coptisine
黄连碱
🗣️ 情景例句
Don't stand on ceremony, make yourself at home.
别客气，随便吃。
I am Lao Haoren, executive manager of the sales department of Stone International.
我叫劳浩仁，“世通国际”的销售部经理。
You don't know where Karen is, do you?
你不知道卡轮在哪，是吧？