Perfluoroallene
[化] 全氟丙二烯
🗣️ 情景例句
Generally speaking, it's quite a fair settlement.
大致上说，这样解决很恰当。
What do you want to do after graduation?
你毕业后想干什么？
How can you change your mind at last minute?
你怎么能在最后时刻改变主意呢？