1
developed + noun
Japan is a highly developed country.
日本是一个高度发达的国家。
发达的
先理解核心含义，再看它在真实句子里的用法。
发达的
of a country or region: rich and industrialized; not poor and developing
Japan is a highly developed country.
日本是一个高度发达的国家。
富裕且工业化的,非第三世界的
wealthy and industrialized; not third-world.
成熟的
Mature.
含有人造基础设施的
Containing man-made structures such as roads, sewers, electric lines, buildings, and so on.
拥有必要基础设施的
Having useful or necessary infrastructure.
The developed countries have advanced healthcare systems.
发达的国家拥有先进的医疗保健系统。
His developed sense of responsibility impressed his boss.
他成熟的责任感给老板留下了深刻印象。
The company bought a developed plot of land for the new factory.
公司购买了一块已开发的土地用于新工厂。
Japan is a highly developed country.
日本是一个高度发达的国家。
表示状态，常用于描述经济、技术等。
The infrastructure is well developed.
基础设施很发达。
Not this
Japan is a developing country.
Use this
Japan is a developed country.
学习者常混淆形容词 "developed"（发达的）和 "developing"（发展中的），前者用于经济发达的国家，后者用于仍在发展中的国家。
Not this
The technology developed.
Use this
The technology is developed.
形容词 "developed" 作表语时需加系动词 "be"，而 "developed" 作动词过去式表示动作，不符合此处表示状态的意图。中文形容词可直接作谓语，导致学习者遗漏系动词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
发达国家
The government provides aid to developed countries.
政府向发达国家提供援助。
发达经济体
The country has a highly developed economy.
这个国家拥有高度发达的经济。
发达世界
Many people in the developed world enjoy a high standard of living.
发达世界的许多人享有高生活水平。
发达社会
Education is a priority in developed societies.
教育是发达社会的优先事项。
发达的基础设施
The city has a well-developed infrastructure.
这个城市拥有发达的基础设施。
成熟的意识
She has a highly developed sense of responsibility.
她有高度成熟的责任感。
发达国家
Japan is a developed country with a high standard of living.
日本是一个拥有高生活水平的发达国家。
发达世界
The developed world faces challenges such as aging populations.
发达世界面临着人口老龄化等挑战。
发达经济体
A developed economy typically has a strong service sector.
发达经济体通常拥有强大的服务业。
Use developed naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
de(的)+velop(发展)+ed(的) -> 发展了的，即发达的
通常用于正式或半正式语境，如经济、社会、房地产或技能描述。既常见于学术报告和新闻报道，也可用于日常交谈。多对应“发达的”或“成熟的”。
通常用作定语或表语，无特定介词搭配
Dictionary facts from ECDICT, WIKTIONARY.