![WhenJoshuaBlue,aheadteacherattheKennedy,hostsalecturefo...]( "WhenJoshuaBlue,aheadteacherattheKennedy,hostsalecturefo...")
- 问题详情：WhenJoshuaBlue,aheadteacherattheKennedy,hostsalectureforhisstudents,hewearsalightviolet-coloredtie."Youdon'twantsomanybrightcolorsthatthekidswillgetdistracted,"saidBlue.Colorsgiveoffveryspecificsignals,anddifferenttiecolorsstandforverydiff...
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