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.
随便看	traceable trace element trace fossil traceless tracer tracer bullet traceried tracery trachea tracheal tracheate tracheation tracheid tracheitis trachelium tracheo- tracheobronchial tracheole tracheophyte tracheoscopy tracheostomy tracheotomy Trachiniae trachle trachoma

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。