A little lion cub, born in a zoo, lives in a cage that is only ten steps long. On the eleventh step he bangs his head against the bars, but one day the zoo keeper leaves the cage door open.
Overview：A little lion cub, born in a zoo, lives in a cage that is only ten steps long. On the eleventh step he bangs his head against the bars, but one day the zoo keeper leaves the cage door open.
