- 問題詳情:Accordingtoareportrecently,thereareapproximately25.6millionteensintheU.S.marketandtheamountofmoneytheyhavetospendeveryyearcontinuestogrow.Itisestimatedthatteenshaveanaverageannualincomeofanywherefrom$2,000to$4,000.Eventhoughteensmightnotspende...
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