现在，有形的物质世界的首要问题是人口过剩。
Then, as now, the materials state, the chief problem was overpopulation.
人口过剩和自由是不可调和的。
是不是因为这样的人口过剩？
人口过剩，但人人都有份工作。
就拿一个例子来说说明人口过剩。
该国的人口过剩也增加了粮食生产压力。
Overpopulation in the country has also increased pressure on food production.
人口过剩是个普遍的问题。
如今，(人口过剩)已不面对的问题了。
Nowadays, (overpopulation) has become a problem we have to face.
人口过剩是最大的污染源。
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。
The issue of overpopulation is a complicated one, and it's being addressed internationally.
几乎每一个人都为人口过剩的问题而担忧。
Almost everyone is worried about the problem of overpopulation.
地处热带雨林的国家大都贫穷，人口过剩。
The countries in which the rainforests are located are all quite poor and over populated.
回首20世纪70年代早期，人口过剩像是要毁灭地球。
Back in the early 1970s, it was overpopulation that was about to destroy the Earth.
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.
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.
如今，人口过剩已成为我们不得不面对的成绩了。
Nowadays, overpopulation has become a problem we have to face.
䠔历史上，人口过剩的问题从来没有比现在更加突出。
Never before in history has the 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加突出。
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。
In history, the problem of overpopulation is never serious than now.
历史上，人口过剩的问题从来没有比现在更加突出。
Historically, the problem of overpopulation has never been more prominent than it is now.
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.
历史上，从来没有出现人口过剩的问题比现在更突出。
Never before in history has the issue of... been more evident than now.
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。
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。
It is commonly believed that nowadays, overpopulation has become a problem we have to face.
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