Pentafluorization
五氟化反应
🗣️ 情景例句
I don't appreciate your advances towards me.
我真的不喜欢你来搭讪。
Never show the bottom of your purse or your mind.
钱包不露底，思想需保留。
but although our faith in many of the things in which our forefathers fervently believed has weakened,
可是虽然我们对我们祖先笃信的许多事物已不太相信，