单词	centroid
释义	centroid noun cen·​troid ˈsen-ˌtrȯid  1 : center of mass 2 : a point whose coordinates (see coordinate entry 3 sense 1) are the averages of the corresponding coordinates of a given set of points and which for a given plane or three-dimensional figure (such as a triangle or sphere) corresponds to the center of mass of a thin plate of uniform thickness and consistency or a body of uniform consistency having the same boundary Word History First Known Use 1844, in the meaning defined at sense 1
随便看	impersonification impersonify impertinence impertinences impertinencies impertinency impertinent impertinently impertinentness impertinents imperturbabilities imperturbability imperturbable imperturbableness imperturbablenesses imperturbably imperturbation imperturbed imperviable impervious imperviously imperviousness imperviousnesses impest impester

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