Hexafluoroethane
[化] 六氟乙烷
🗣️ 情景例句
No, thank you.
不要，谢谢。
Talk about it next time.
下次再聊。
But this does not matter, for, as he has often remarked, one is never too old to learn.
但这没有关系，因为正如他常说的那样，人要活到老学到老。