Pfas
abbr. personal fall arrest system 防坠落系统; [医][=performic acid-Schiff reaction]过氧甲酸-席夫反应
🗣️ 情景例句
Would you like to see baby Max, Michelle?
想看看Max小家伙吗， Michelle？
If you run after two hares,you will catch neither.
同时追两兔，一只也难捕。
Mum, I don't feel very well.
妈，我感觉不舒服。