성공했으나

In a sentence

• 그는 시험에 성공했으나 실수를 많이 했다.

  He succeeded in the exam but made many mistakes.

  성공했으나 is used to indicate contrast between success in the exam and the mistakes made thereafter.

• 프로젝트는 성공했으나 많은 시간이 소요되었다.

  The project was successful but took a lot of time.

  Here, 성공했으나 contrasts the success of the project with the lengthy time it required.

• 그녀는 대회에서 성공했으나 만족하지 않았다.

  She succeeded in the competition but was not satisfied.

  성공했으나 in this context highlights the opposition between the achievement in the competition and her feelings of dissatisfaction.