WangYan,a15-year-oldChinesegirl,likeseatingsnacksvery...
问题详情: WangYan,a15-year-oldChinesegirl,likeseatingsnacksverymuch.Shepreferscreambiscuits,McDonald'shamburgersandKFCchicken.Asaresult,shehasbecomeoverweight. TodayinChina,therearemanychildre...