单词	trihedron
释义	trihedron noun tri·​he·​dron trīˈhēdrən plural trihedrons -drənz or trihedra -drə : a figure formed by three planes meeting in a point Word History Etymology New Latin, from tri- + -hedron
随便看	back/paint oneself into a corner backache backache brake backaches backaching backassward backasswards backbackiri backband backbands backbar backbars backbearing backbeat backbeats backbench backbencher backbenchers backbenches backbend backbends backberand backberend backbit backbite

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