单词	center of mass
释义	center of mass noun phrase : the point in a body or system of bodies at which the whole mass may be considered as concentrated Word History First Known Use 1862, in the meaning defined above
随便看	guilefulnesses guileless guilelessly guilelessness guilelessnesses guilery guiles Guilford Courthouse National Military Park Guilin guiling Guillain-Barré syndrome Guillaume guillemet guillemets Guillemin guillemot guillemots guilloche guilloches guillotine guillotine shears guillotined guillotiner guillotines guillotining

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