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
Time moved at a snail's pace before the holiday.
假期之前时间过得非常缓慢。
The stronger the motivation, the more quickly a person will learn a foreigh language.
一个人学外语的动力越强大、学得就越快。
And here's mine.
这是我的。