稀有 基本经济问题人类有无穷欲望但资源却有限由于资源稀有人类需要作出不同的决策以期有效地分配资源
The basic economic problem of scarcity Human beings have infinite desires but limited resources and because resources are scarce human beings need to make different decisions in order to allocate them efficiently
以上为机器翻译结果，长、整句建议使用 人工翻译 。