동부지역에

In a sentence

• 그 동부지역에 아름다운 해변이 있어요.

  There are beautiful beaches in that eastern area.

  Here, '동부지역에' specifies the location to describe a feature present in the eastern region.

• 동부지역에 있는 호텔은 정말 고급스러워요.

  The hotels located in the eastern area are very luxurious.

  In this sentence, '동부지역에' indicates the specific area where the luxurious hotels are located.

• 우리는 이번 여름에 동부지역에 갈 계획이에요.

  We plan to go to the eastern area this summer.

  Here, '동부지역에' expresses the destino where the speaker plans to go during summer.