사무부총장을

In a sentence

• 사무부총장을 만나기 위해 회의실로 갔다.

  I went to the meeting room to meet the Vice Secretary General.

  In this sentence, '사무부총장을' is the object, marked by the object particle '을'. It signifies the person being sought for a meeting.

• 사무부총장을 추천하는 사람들이 많다.

  There are many people recommending the Vice Secretary General.

  Here, '사무부총장을' is also the object, marked by '을', referring to the person being recommended.

• 사무부총장을 맡기로 한 사람은 매우 경험이 많다.

  The person who decided to take on the role of Vice Secretary General is very experienced.

  In this case, '사무부총장을' is part of a relative clause, indicating the role taken on by the subject.