Quaternization
(=quaternarization)季铵化作用, 成季碱反应
🗣️ 情景例句
Mm-hmm, hmm, uh-huh.
Mm-hmm,hmm,uh-huh。
What time did you use to get up last year?
你去年时常什么时间起床？
If you have any comment about these clauses, do not hesitate to make.
对这些条款有何意见，请尽管提，不必客气。