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单词	understratum
释义	understratum noun : substratum Word History Etymology under entry 3 + stratum
随便看	Otolithidae otoliths otolitic otologic otological otologies otologist otologists otology Otomac otomaco otomacos otomacs otomak otomaks Otomanguean Otomi Otomian otomis otorhinolaryngologic otorhinolaryngological otorhinolaryngologies otorhinolaryngologist otorhinolaryngologists otorhinolaryngology

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。