Acetylcholine
n. 乙酰胆碱\\n[化] 乙酰胆碱
🗣️ 情景例句
Haven't I seen you before?
我以前没见过你吗？
I'm glad to hear about your graduation.
我很高兴得知你毕业了。
We'll have to talk it over some more.
这个我们还得再谈一谈。