less developed countries是什么意思

less developed countries
欠发达国家;
例句：
This scarcity is inevitable in less developed countries.
这一匮乏在欠发达国家不可避免。
Dr.Yuan is now circulating his knowledge in India, Vietnam and many other less developed countries to increase their harvest.
袁博士正在把他的知识用在像印度、越南这些不发达的国家以便于增加它们水稻的产量。
It's one of the less developed countries.
它是发达程度较低的国家之一。