Dfe
abbr. derivative fighter engine 派生型战斗机发动机; derrick floor elevation 起重机基底海拔; double fish eye (buttons) 双鱼眼（照相机功能按钮）
🗣️ 情景例句
Study hard and study everyday, if you want to master the English language.
如果你想精通英语的话，就得每天刻苦学习。
Sadness and gladness succeed each other.
悲喜互继，哀乐相续。
You always want the best,but we can't afford it.Sometimes you think you're a millionaire!
你总是要买最好的，可我们买不起，有时候你认为自己是个百万富翁！