Hydrofluorination
氢氟化作用
🗣️ 情景例句
I don't see why she's so against the idea.
我不明白她为何如此反对这个计划。
Joy to the world!
给这个世界欢乐！
As there are so many people about, the dogs have to be kept in a special enclosure.
由于来人太多，狗被关在专门的围栏里。