This is the 15696th most frequent Korean word.
보존할
"To preserve" or "to conserve."
In this sentence, '보존할' is used as a descriptive verb stem meaning 'to preserve.' It describes the action applied to '유적지,' or 'historical site.'
우리는 이 유적지를 보존할 책임이 있습니다.
We have the responsibility to preserve this historical site.
'보존할' here is again used in its descriptive form to indicate the action of preservation applied to the context of '지구 환경,' representing the Earth's environment.
지구 환경을 보존할 방법을 모색하고 있습니다.
We are searching for methods to preserve the Earth's environment.
The term '보존할' in this sentence highlights the necessity of preservation regarding '문화 유산,' or 'cultural heritage.'