Crotononitrile
[化] 丁烯腈
🗣️ 情景例句
That's what I said!
我正是这么说的！
Michael must hold on to the driver of the motorcycle.
米高必须紧紧抓住机车的骑士。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？