거론했다

In a sentence

• 그는 중요한 문제를 회의에서 거론했다.

  He mentioned an important issue in the meeting.

  The word '거론했다' is used to mean 'mentioned' or 'brought up' something for discussion.

• 이 논문은 환경 변화에 대한 연구를 거론했다.

  This paper discussed research on environmental changes.

  The word '거론했다' indicates that the paper has included and addressed the topic within a broader context.

• 그 안건은 이후에 한 번도 거론되지 않았다.

  That agenda was never brought up again afterwards.

  Here, '거론되지 않았다' means that the point was not discussed or mentioned again.