关于人口问题，每个时代都有每个时代的恐慌。

EVERY age has its big demographic scares.

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关于人口问题有四篇没有夸张而有启发性的读物。

There are four very sober and informative books of readings on the human population .

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环境保护主义者关于人口问题的归责长期唇枪舌剑争论不休：人口总量即与之对应的供给人口需要的水、食物、矿产和清洁的空气总量等等。

Environmentalists are arguing in circles about who or what is to blame: the total number of people; or the amount of water, food, mineral ores or clean air each demands.

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我不同意苏先生关于中国人口问题。

I disagree with Mr. Su on Chinese population as a problem.

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我不同意苏先生关于中国人口问题。

I disagree with Mr. Su on Chinese population as a problem.

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