第四世界 meaning in English

fourth world

I ' m doing a research paper on fourth - world countries
我正在做对第四世界国家的研究论文。
" the fourth world shall end soon , and the fifth world will begin . this the elders everywhere know . the signs over many years have been fulfilled , and so few are left
“第四世界将不久结束，而第五世界将会开始。任何地方知道年长者。经过很多年完成了这个标记，而因此少数留下了。 ”