Quaternization
(=quaternarization)季铵化作用, 成季碱反应
🗣️ 情景例句
I didn't have that when Richard and Susan were born.
在Richard和Susan出生时我可没有人帮忙。
Yes, I have got the license from the Bank of China. Here you are.
是的，我已得到中国银行的许可。请过目。
It is now being sent to his home by train.
现在正用火车给他运回家来。