This is the 18443rd most frequent Korean word.
시달리다
"To suffer from or be harassed by."
This usage of '시달리다' indicates experiencing or being plagued by stress.
그는 항상 스트레스에 시달린다.
He always suffers from stress.
Here, '시달리다' refers to being tormented or distressed by bullying actions.
그 아이는 학교에서의 괴롭힘에 시달리고 있다.
That child is suffering from bullying at school.
In this case, '시달리다' implies enduring hardships related to economic challenges.