Quaterisation
季铵化反应
🗣️ 情景例句
What's the capital city of France?
法国的首都是哪里？
I'm going to show him how to cook.
我正要指点他如何做饭。
When you place a sheet of paper in a fax machine, the machine reads the writing on the page and changes the shapes of letters into electronic signals.
当你把一张纸放进传真机里，机器就会"读"纸上的字迹，把字的形状变为电子符号。