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
It's not over yet.
还没有完呢。
Could you tell me where I can find these books?
您能告诉我在哪儿能找到这些书吗？
The price includes postage charges.
价格包括邮资在内。