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	trm trml trms tRNA trnas trng tro tro me, sa troad troades troadic troads troaked troaking troaks Troas troat troated troating troats Trobriand trobriand islander trobriander trobrianders troca

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