In the developing countries, it says, most of the environmental problems are caused by underdevelopment.
出自-2016年6月閱讀原文
柯林斯高階英漢雙解學習詞典釋義
ADJ
（國家或地區）不發達的，欠發達的，經濟落后的
An underdeveloped country or region does not have modern industries and usually has a low standard of living. Some people dislike this term and prefer to use developing.