英语词汇“toughen”的释义、区别辨析及用法例句-英语同义词词典

单词	toughen
例句	toughentoughen /ˈtʌfən/ verb ➔ see strengthen
随便看	surgery surpass surplus surprise surprised surprising surrender surround survey survive survivor suspect suspend suspense suspension suspicion sustain sustainable swamp swap swarm sway swear sweat sweep

英语同义词词典收录了6737条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。