Polyfluorination
多氟化反应
🗣️ 情景例句
Don't get so excited about it.
别因为这事儿太激动。
No, no!
不要！不要！
Collecting as a serous hobby is quite different and has many advantages.
作为一种严肃的业余爱好的收藏活动完全是另外一回事，它具有许多益处。