This is the 10511th most frequent Korean word.
국립서울현충원을
"National Seoul Memorial Cemetery."
In this sentence, '국립서울현충원을' is used as the direct object of the verb '방문해', indicating the location being visited.
국립서울현충원을 방문해 보세요.
Visit the National Seoul Memorial Cemetery.
Here, '국립서울현충원을' acts as the object of '산책합니다', describing where the walking activity takes place.
저는 국립서울현충원을 가끔 산책합니다.
I occasionally take a walk around the National Seoul Memorial Cemetery.
In this context, '국립서울현충원을' serves as the object of '청소하는', specifying the place that was cleaned.