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
I don't know how to solve the problem. Will you help me out?
我不知道该怎么解决这个问题。你能帮我吗？
Adversity makes a man wise,not rich.
患难能使人聪明，但不能使人富有。
The assistant who served her did not like the way she was dressed.
接待她的售货员不喜欢她的那副打扮，