单词	mean difference
释义	mean difference noun : the average of the absolute values of the n (n −1)/2 differences that exist between pairs in a statistical distribution of n elements Word History First Known Use 1830, in the meaning defined above
随便看	Fairfield Fairfield County fairfieldite fairgoer fairground fairgrounds fairier fairies fairies'-butter fairies'-table fairiest fairily fairing fairings fairingses fairish fairisher fairishest fairishly fairlead fairleader fairleaders fairleads fairlier fairliest

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