고지서를

In a sentence

• 지난주에 고지서를 받았습니다.

  I received the bill last week.

  고지서를 here means 'bill' or 'statement', referring to a formal notification, such as an invoice or a payment request.

• 고지서를 정확히 읽고 내용을 확인하세요.

  Carefully read the bill and check its contents.

  In this sentence, 고지서를 signifies an official bill or notice that should be reviewed for its details.

• 고지서를 분실하면 재발급을 신청해야 합니다.

  If you lose the bill, you need to request a reissue.

  Here, 고지서를 represents the document of a bill or notification that might require reissuing in case of loss.