Yap.Town

를 맡았다

was responsible for; took charge of

→ 를
phrase Uncommon #6,460
was responsible for; took charge of 를 is the object particle attached to a noun ending in a vowel, and 맡았다 is the past-tense form of 맡다, meaning “to take charge of” or “to be responsible for” in this context.
KO: 그는 행사 사회를 맡았다.
EN: He was in charge of hosting the event.

자니 디오는 고기를 맡았다

Johnny Dio was in charge of the meat.

— 좋은 친구들 (1990)

나는 베이컨의 냄새를 맡았다.

I smelled bacon.