英语词汇“ef-”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ef-
释义	WordReference Random House Learner's Dictionary of American English © 2024 ef-, prefix. ef- is a form of ex- attached to roots beginning with f: efficient. WordReference Random House Unabridged Dictionary of American English © 2024 ef-, var. of ex- ¹ (by assimilation) before f: efficient.
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