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	hearthsides hearthstone hearthstones heartier hearties heartiest heartilier heartiliest heartily heartiness heartinesses hearting heartland heartlands heartleaf heartleafs heartless heartlesslier heartlessliest heartlessly heartlessness heartlessnesses heartlets heartnut heartpea

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