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
I'll give them your regards.
我会向他们转达你的问候。
She requests your presence at the conference.
她恳求你们参加会议。
Have you had a wash yet?
你洗过脸了吗？