单词	polyhedral angle
释义	polyhedral angle noun : a portion of space partly enclosed by three or more planes whose intersections meet in a vertex Word History First Known Use circa 1864, in the meaning defined above
随便看	signified signifieds signifier signifiers signifies signifié signify signifyin signifyin' signifying signifyings signing signing (up or on) signing away signing for signing in signing off signing off (on) signing off on signing on signing on (for) signing on for signing out signing over signing up

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。