- 問題詳情:Bobbywassixyearsold,andhewenttoschool.Therewerenineteenotherlittleboysandgirlsinhisclass.Theyoftenwenttopartiestogether.Whenoneofthechildrenhadabirthday,heorsheinvitedalltheotherchildrentocometoaparty.AndatChristmasallthemothershadpartiesfora...
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