발표한

발표한

"Announced" or "presented."

In this sentence, '발표한' refers to the previously presented content. It modifies '내용' to define what specifics are being summarized.

그는 프로젝트에 대해 발표한 내용을 간단히 요약했다.

He briefly summarized the content he presented about the project.

In this case, '발표한' qualifies '정책,' referring to the policy that was announced previously, indicating its connection to the past event.

여기 있는 문서는 작년에 발표한 정책에 대해 다룬다.

The document here discusses the policy that was announced last year.

Here, '발표한' describes the action of the scientist presenting their discovery. '발표한' is a past participle form (adjective) referring to the completed task of presenting.

그 과학자는 새로운 발견을 학회에서 발표한 후 많은 주목을 받았다.

The scientist received a lot of attention after presenting a new discovery at the conference.