Habits,whethergoodorbad,aregraduallyformed.Whenapersond...
问题详情：Habits,whethergoodorbad,aregraduallyformed.Whenapersondoesacertainthingagain,heisdrivenbysomeunseenforcetodothesamethingrepeatedly,thenahabitisformed.Onceahabitisformed,itisdifficult,andsometi...