彼の役目は会議の議事録を取ることです。
His job is to take the minutes of the meeting.
子供を守るのは親の役目だ。
Protecting children is a parent's duty.
無事に荷物を届けて、ようやく役目を果たした。
Having delivered the package safely, I had finally done my job.
この古い橋はもう役目を終えた。
This old bridge has served its purpose.