(41)Whenapersondoesacertainthingagain,heisimpelled(迫使)...
问题详情： (41)Whenapersondoesacertainthingagain,heisimpelled(迫使)bysomeunseenforcetodothesamethingrepeatedly;thusahabitisformed.Onceahabitisformed,itisdifficult,andsometimesimpossible,togetridof.(42)...