을 대신해

on behalf of; in place of

→ 을
phrase Rare #20,079
on behalf of; in place of Used after a person or group to say that someone acts or speaks for them, or takes their place.
KO: 선생님을 대신해 발표했어요.
EN: I gave the presentation on behalf of the teacher.

우리 학교에 오신 걸 교장 선생님을 대신해 환영합니다

On behalf of the principal, I welcome you to our school.

— 서스페리아 (1977)

회장님을 대신해 왔습니다

I’ve come on behalf of the chairman.

— 블레이드 러너 2049 (2017)