Pef
abbr. peak expiratory flow 最大呼气流量; personal effects floater (policy) 私人物品保险，私人行李保险
🏥 医学释义
最大呼吸流量
🗣️ 情景例句
Well, why don't you tell us about that, Michelle?
那好，能否给我们讲一讲 Michelle？
My hobby is collecting stamps.
我的嗜好是收集邮票。
Could you do me a big favor?
能否请你帮我个忙？