Epoxidation
[有化]环氧化作用
🗣️ 情景例句
Time moved at a snail's pace before the holiday.
假期之前时间过得非常缓慢。
That man is a teacher,isn't he?
那个人是位教员，对不对？
Thanks. I wonder if I could use your phone.
谢谢。我想知道是否可以用你的电话。