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	tonikan Tonikan toning toning (down) toning (up) toning down toning up tonish tonishly tonishness tonite tonitrocirrus tonitruant tonitruous tonjon tonk tonka bean Tonkawa Tonkawan tonkawas tonked tonkers Tonkin Tonkin, Gulf of tonkinese

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