Never before in history has the i ue of overpopulation been more evident than now .
Never before in history has the i ue of overpopulation been more evident than now .
历史上，人口过剩的问题从来没有比现在更加突出。
Never before in history has the i ue of overpopulation been more evident than now .
历史上，人口过剩的问题从来没有比现在更加突出。