Quaternization
(=quaternarization)季铵化作用, 成季碱反应
🗣️ 情景例句
I've got six months to go until graduation.
我还有六个月就毕业了。
The students tumbled over each other as they got off the bus.
学生们下车的时候，由于拥挤一个叠一个的摔倒了。
Can you supply us right away?
能够立刻供货吗？