Pfas
abbr. personal fall arrest system 防墜落系統; [醫][=performic acid-Schiff reaction]過氧甲酸-席夫反應
??? 情景例句
Good afternoon. What's the trouble?
下午好。有什么不舒服嗎？
My parents got married in 1
我父母1954年結婚的。
Harry used to consider it a great joke to go into expensive cosmetic shops and make outrageous requests for goods that do not exist.
哈里曾認為走進一家名貴化妝品商店，荒唐地提出要買一種根本不存在的商品是件開心的事兒。