单词	addendum circle
释义	addendum circle noun : a circle touching the outermost points of the teeth of a circular gear wheel see pitch line Word History First Known Use 1870, in the meaning defined above
随便看	grew in grew into grew on grew out grew up grewhound Grewia grewiae grewias grewsome grewsomer grewsomest grex grexes grey grey drake grey friar grey nun grey out grey wavey greybeards greycing greyed greyed out greyed-out

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