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

单词	toughen
释义	toughen —toughener, n. /tuf"euhn/, v.t. , v.i. to make or become tough or tougher. [1575-85; TOUGH + -EN¹] Syn. harden, firm, strengthen, stiffen.
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英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。