最近以来，经济学家们又不得不去研究绝对稀缺这一概念。
More recently , economists have also been obliged to deal with the concept of absolute scarcity .
人类进入文明社会标志着人类摆脱了绝对的资源稀缺束缚；
The entrance into civilized society marks that people have got rid of the restraints of scarce resources .
绝对稀缺