Quaterisation
季铵化反应
🗣️ 情景例句
And to Robbie and the Stewart family
并且感谢Robbie和Stewart全家
I don't have the figures, but I'll find out.
我没有这个数据，但我会找到的。
Instead he bought himself fifty pence worth of trouble.
却拿这钱给自己买了50便士的麻烦。