发达国家: a developed countryadvance countryadvanced countriesadvanced countrydeveloped countriesdeveloped nationsdeveloped stateentwickeltes landmore-development countries (mdcs)oecd
中等发达国家: medium developed countrymoderately developed country
工业发达国家: industrially advanced countryindustrially developed country
经济发达国家: developed countryeconomically advanced country
欠发达国家: le developed countryle developedcountryless developed countriesless developed country（ldc）less-developed countryless-development countries (ldcs)underdeveloped country
