If you talk about developing countries or the developing world, you mean the countries or the parts of the world that are poor and have few industries.
近义词
emergent , Third World
双语例句
例： In the developing world cigarette consumption is increasing.
在发展中国家香烟消费正在增长。
例： Income disparities between industrial and developing countries will continue to grow.
工业国家和发展中国家的收入差异将继续拉大。