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
When you have a business meeting in the United States, come to the appointment on time.
当你在美国有商务会晤时，一定要按时赴约。
An ill marriage is a spring of ill fortune.
不良的婚姻是恶运的来源。
I am told that you dance wonderfully well.
我听说你的舞跳得特棒。