But overpopulation is a crisis.
但数量过剩是一种危机。
Overpopulation is a root cause.
人口过多是一个根本原因。
Is it because of this overpopulation?
是不是因为这样的人口过剩？
Overpopulation is a universal problem.
人口过剩是个普遍的问题。
Overpopulation is a universal problem.
人口过多是全球性的问题。
Let's take overpopulation as an example.
就拿一个例子来说说明人口过剩。
Nowadays(overpopulation)has become a problem we have to face.
现今，人口过剩已成为我们不得不面对的问题。
Nowadays, overpopulation has become a problem we have to face.
如今，人口过剩已成为我们不得不面对的成绩了。
Almost everyone is worried about the problem of overpopulation.
几乎每一个人都为人口过剩的问题而担忧。
Nowadays, (overpopulation) has become a problem we have to face.
如今，(人口过剩)已不面对的问题了。
An increase in crime is one of the by-products of overpopulation.
犯罪的增加是人口过多的副产品之一。
Then, as now, the materials state, the chief problem was overpopulation.
现在，有形的物质世界的首要问题是人口过剩。
Many believe that poverty is a direct consequence of overpopulation.
许多人认为贫穷是人口过多的直接后果。
In history, the problem of overpopulation is never more prominent than now.
历史上，人口过剩的问题从来没有比现在更加突出。
Overpopulation in the country has also increased pressure on food production.
该国的人口过剩也增加了粮食生产压力。
Back in the early 1970s, it was overpopulation that was about to destroy the Earth.
回首20世纪70年代早期，人口过剩像是要毁灭地球。
An awesome policy with great potential for curbing the horrors of overpopulation.
这令人敬畏的政策有可能威慑到人口不平衡。
Never before in history has the issue 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突出。
Never before in history has the issue of overpopulation been more evident than now.
历史上， 历史上，人口过剩的问题从来没有比 现在更加突出。 现在更加突出。
Never before in history has the issue of overpopulation been more evident than now .
䠔历史上，人口过剩的问题从来没有比现在更加突出。
The issue of overpopulation is a complicated one, and it’s being addressed internationally.
人口过剩问题很复杂，全世界都在极力解决这个问题。
The issue of overpopulation is a complicated one, and it's being addressed internationally.
人口过剩问题很复杂，全世界都在极力解决这个问题。
Historically, the problem of overpopulation has never been more prominent than it is now.
历史上，人口过剩的问题从来没有比现在更加突出。
It is commonly believed that nowadays, overpopulation has become a problem we have to face.
当今人们普遍认为，人口过剩已经成为了我们不得不面对的问题。
Air and water pollution, overharvesting of plant and animal species, overpopulation and so on.
空气和水的污染，植物和动物物种，人口过剩等过度。
Air and water pollution, overharvesting of plant and animal species, overpopulation and so on.
空气和水的污染，植物和动物物种，人口过剩等过度。
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