This is the 13283rd most frequent Korean word.
들어서며
"Entering" or "as one enters."
Here, '들어서며' is used to indicate the action of stepping into a place while simultaneously performing another action, such as looking around.
건물 안으로 들어서며 주변을 살펴보았다.
As I entered the building, I looked around.
In this case, '들어서며' is used to describe entering the meeting room while carrying out a secondary action, greeting.
그는 회의실에 들어서며 모든 사람에게 인사를 건넸다.
As he entered the meeting room, he greeted everyone.
Here, '들어서며' signifies the moment of arrival or passage into the park combined with the perception of the fresh air.