Acetylcholine
n. 乙酰胆碱\\n[化] 乙酰胆碱
🗣️ 情景例句
Lacks maturity.
不成熟。
How often did I tell you to speak clearly?
我告诉你多少次要讲清楚?
I was not surprised to find that the machine still refused to work after I had reassembled it,
等我装完后，那台割草机仍然一动不动，对此我倒并不感到吃惊。