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
The bad news hit everyone hard.
恶耗使每个人都受到了沉重打击。
Are you in the mood to listen to music?
你有兴致听音乐吗？
However, a few days later, he was told that a mistake had been made.
然而，几天之后，有人告诉他说弄错了。