사업이나

In a sentence

• ₩사업이나 교육이나 모두 중요한 분야입니다.

  Business or education are both important fields.

  Here, "사업이나" is used to indicate an alternative or choice, meaning 'business or education' in this context.

• ₩사업이나 제대로 해 봐야죠.

  You should properly try doing some business.

  In this sentence, "사업이나" is used to propose or suggest trying business, emphasizing action.

• ₩사업이나 다름없을 정도로 열심히 했습니다.

  I worked so hard that it could be compared to running a business.

  Here, "사업이나" is used in a comparative sense, indicating the level of effort equating to running a business.