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
Hello, Miss Wang. I'm fine, and you?
喂，王小姐，我很好，你呢？
They could imagine who was at the door.
他们无法想象门那边有谁在。
Do you like it, dear?
你喜欢吗，亲爱的？