ef
abbr.
efficiency 效率;
equivalent focal length 等效焦距;
expectant father 准爸爸;
experimental flight 试飞;
例句:
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All cheques should be made out to "EF International Language Schools"
所有支票的收款人都应是“英孚国际语言学校”。
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EF Should it be publicly funded do you think?
来自BBC
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The ef fect of erosion varies with soil type and depth.
侵蚀的影响因土壤的类型和深度的不同而不同.
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" Ef you doan care'bout how folks talks'bout dis fainbly, Ah does,'she rumbled.
" 即使你并不在乎人们怎样谈论这个家庭,但俺还在乎呢, " 她嘟囔着.
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EF I'll rephrase the question if you like.
来自BBC
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EF Yes, I understand the distinction you make.
来自BBC