单词	Study first
释义	Study first 先学后教
随便看	pentagonal chain pentagonal dodecahedrane pentagonal dodecahedron pentagonal-dodecahedron pentagonale pentagonales pentagonal hemihedrism pentagonal knife pentagonally pentagonal number pentagonal prism pentagonal prism finder pentagonal prisms pentagonal pyramid pentagonal roof prism pentagonals pentagonal screen pentagonal section pentagonal structure pentagonaltimbering pentagonal timbering pen-tagonal trioctahedron pentagonal trisoctahedron pentagonal tristetrahedron Pentagon Automated Communications System