Polyfluorination
多氟化反应
🗣️ 情景例句
My daughter isn't feeling well.
我女儿感到不舒服。
Wickedness does not go altogether unrequited.
恶有恶报。
It is impossible to give a satisfactory explanation for a pot-holer's motives.
要想对洞穴探险者的动机作出满意的解释是不可能的。