单词	unpenetrable
释义	unpenetrable adjective un·​penetrable "+ : impenetrable Word History First Known Use 15th century, in the meaning defined above
随便看	hired hired girl hired gun hired guns hired hand hired man hired out hirees hireless hireling hirelings hirer hirers hires hires out methano- methanogen methanogeneses methanogenesis methanogenic methanogens methanoic acid methanol methanols Methanomonadaceae

英语词典包含469781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。