Quaterisation
季铵化反应
🗣️ 情景例句
No, Dad, and certainly not without the right magic.
不， 爸爸， 而且没有正确的魔法更是绝对不行。
To conclude the business, you need to cut your price at least by 4%,I believe.
我认为要做成这笔交易，您至少要降价4%。
If, at the time, the British had not feared invasion, it would have been completed.
如果不是因为那时英国人害怕入侵，隧道早已建成了。