This is the 13089th most frequent Korean word.
동중국해
East China Sea
Here, "동중국해" refers to a geographic area, the East China Sea, noted for its boundary location.
동중국해는 중국과 대한민국 사이에 위치하고 있습니다.
The East China Sea is located between China and South Korea.
In this example, "동중국해" serves as the specific area where activities, such as discussions, occur.
동중국해에서 해양 자원 개발에 대한 논의가 이루어지고 있다.
Discussions about marine resource development are taking place in the East China Sea.
"동중국해" in this sentence highlights a characteristic attribute (weather patterns) associated with this sea.