Mef
abbr. maximal expiratory flow 最大呼气流量
🗣️ 情景例句
Like what special matters?
什么样的特殊状况？
We tried in vain to make him change his mind.
我们试图使他改变他的主意，但白费力气。
The sandwiches are all ready, said her mother. I made some dumplings last night, too!
“三明治全都做好了，”她妈妈说，“昨晚我还做了一些饺子哩！”