돌파했던

In a sentence

• 그는 마침내 인생의 큰 어려움을 돌파했던 시기를 회상했습니다.

  He finally reminisced about the time he overcame significant challenges in his life.

  In this sentence, '돌파했던' is used to describe having overcome or broken through a major difficulty in the past.

• 우리는 곧 판매 기록을 돌파했던 날을 기념할 것입니다.

  We will soon celebrate the day we surpassed the sales record.

  Here, '돌파했던' indicates having surpassed or exceeded a metric or achievement.

• 엔지니어들은 기술적 한계를 돌파했던 방법을 공유했습니다.

  The engineers shared the methods through which they overcame technical limitations.

  This usage of '돌파했던' refers to having creatively solved or surpassed a challenge.