부문을

In a sentence

• 나는 기술 부문을 전공했습니다.

  I majored in the field of technology.

  Here, '부문을' is a direct object referring to 'a specific field or domain' that is being studied.

• 그 회사는 여러 부문을 담당하고 있습니다.

  That company handles multiple sectors.

  In this sentence, '부문을' refers to 'different business divisions or sectors' that the company manages.

• 그의 연구는 의료 부문을 개선하는 데 기여했다.

  His research contributed to improving the medical sector.

  Here, '부문을' specifies the focus area or sector, in this case, related to medicine, affected by the research.