Mef
abbr. maximal expiratory flow 最大呼气流量
🗣️ 情景例句
Please tell me about your working background.
请告诉我你的工作背景。
Learn young,learn fair.
为学趁年青，既学须学好。
'I was in my office as usual,' answered the Ambassador.
“我和往常一样，在办公室里，”大使回答说。