单词	Protorosaurus
释义	Protorosaurus noun Pro·​to·​ro·​sau·​rus : a genus of upper Permian reptiles (order Protorosauria) resembling lizards and attaining a length of several yards Word History Etymology New Latin, irregular from proter- + -saurus
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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。