This is the 17182nd most frequent Korean word.
서밋에선
"At the summit."
In this sentence, '서밋에선' specifies the event (the summit) where meetings and discussions occur.
서밋에선 각국 정상들이 모여 협의를 진행합니다.
At the summit, leaders of various countries convene to discuss agreements.
Here, '서밋에선' highlights the forum (the summit) as the place where significant rulings are made.
서밋에선 경제와 환경에 관한 중요한 결정을 내립니다.
At the summit, important decisions regarding the economy and environment are made.
Here, '서밋에선' indicates the location or context (the summit) where actions (addressing issues) take place.