Pentafluorization
五氟化反应
🗣️ 情景例句
If you go camping, at night you'll hear all the nocturnal animals.
如果你去野营，晚上可以听到动物的夜歌。
I never would have thought of it if you hadn't mentioned it.
如果你没提及，我将不会想到它。
Where are the cups?
茶杯在哪儿呢？