Polyfluorination
多氟化反应
🗣️ 情景例句
Yes. I'd like that.
要啊！我想看一看。
He might have been held up in a traffic jam.
他可能因交通阻塞而耽搁了。
We stay at home on Sundays. We play games on Tuesdays and Thursdays.
周日我们呆在家里。周二、周四玩游戏。