Exerciseisthebestwaytostayhealthy.Butfewpeoplegeteno...
问题详情： Exerciseisthebestwaytostayhealthy.Butfewpeoplegetenoughexercise.Only20%ofAmericansget150minutesofphysicalactivityeveryweek.Morethan80millionAmericansover6yearsoldarenotactive(活跃的).Man...