Sulfolane
[化] 四氢噻吩砜; 环丁砜
🗣️ 情景例句
May I have your name and number, please?
请问你的姓名和电话号码？
Lend me your notes.
笔记借我抄。
I know it's not necessary. I want to do it.
我知道不必这样，可是我愿付？/span>