... 迎接世界博览会(Welcome the World Expo) 关于人口问题(The Population Problem) 我们的世界将充满爱(everyone offers some love) ...
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关于人口问题,每个时代都有每个时代的恐慌。
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 .
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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