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	tomato worm tomato yellows tomatoes tomatoey tomb tomb bat tombac tombacks tombacs tombaks tombal Tombaugh tombed Tombigbee tombigbees tombing tombless tombola tombolas tombolo tombolos Tombouctou tomboy tomboyful tomboyish

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。