a failed + noun
failed 作形容词通常只放在名词前作定语，不单独作表语；不能说 The experiment was failed。
She described the project as a failed experiment.
她把这个项目描述为一次失败的实验。
失败的
破产的；倒闭的；腐朽的；磨损的；不成功的；腐烂的；磨损的；破产的
unsuccessful; not achieving the intended result
不成功的
unsuccessful
腐烂的；磨损的
Decayed; worn out.
破产的
Bankrupt.
The failed experiment disappointed the scientists.
失败的实验让科学家们感到失望。
用法提示：此处'failed'作形容词，修饰名词'experiment'，表示'失败的'。
She learned from her failed attempts to start a business.
她从失败的创业尝试中吸取了教训。
用法提示：此处'failed'作形容词，修饰名词'attempts'，表示'失败的'。
The failed marriage left him heartbroken.
失败的婚姻让他心碎。
用法提示：此处'failed'作形容词，修饰名词'marriage'，表示'失败的'。
failed 作形容词通常只放在名词前作定语，不单独作表语；不能说 The experiment was failed。
She described the project as a failed experiment.
她把这个项目描述为一次失败的实验。
这个结构常用来指人在某职业或领域没有成功；failed 在此仍是定语，修饰后面的名词。
He is a failed actor who now works as a teacher.
他是个不成功的演员，现在当老师。
failed 表示公司、银行等破产、倒闭时，常用复数形式泛指一类对象。
Failed banks were closed by the government last year.
去年，破产的银行被政府关闭了。
grammar · medium
易错句子I am failed.
正确表达I failed.
failed 作形容词时意为“不成功的”，通常只放在名词前作定语（如 a failed exam）；表示“我失败了”时，failed 是动词 fail 的过去式，直接作谓语，不能与 be 动词连用，所以删去 am。
grammar · medium
易错句子The bank took over a failure company.
正确表达The bank took over a failed company.
failure 是名词，不能直接放在名词 company 前作修饰语；修饰名词要用形容词 failed，此处意为“破产的、倒闭的”。
grammar · medium
易错句子He is a failed in business.
正确表达He is a failure in business.
failed 是形容词，不能单独作名词指人；表示“失败者”要用名词 failure，所以把 a failed 改为 a failure。
失败的尝试
Despite several failed attempts, she never gave up.
尽管几次尝试都失败了，她从未放弃。
失败的婚姻
His failed marriage left him feeling lonely.
他失败的婚姻让他感到孤独。
失败国家
The country is often described as a failed state.
这个国家常被描述为一个失败国家。
破产的公司
The failed company was bought by a competitor.
这家破产的公司被一家竞争对手收购了。
不成功的演员
He was a failed actor before becoming a director.
在成为导演之前，他是个不成功的演员。
未遂政变
The failed coup led to stricter security measures.
未遂政变导致了更严格的安全措施。
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