Quaternarization
[化] 季铵化作用; 门秀金反应
🗣️ 情景例句
Well, I'm glad you're feeling better
我很高兴各位感觉好些。
Does Karl hope to continue the relationship?
卡尔希望继续保持那种关系吗？
What are you going to give our art teacher for Teachers' Day?
教师节你打算送什么礼物给我们的美术老师？