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
He was involved in a political scandal.
他被牵涉到了一宗政治丑闻中。
See you later.
待会见。
I often fish for hours without catching anything.
我经常一钓数小时却一无所获，