This is the 13296th most frequent Korean word.
들의
"들의" means "of (plural)" or is used to indicate possession or association in the plural form.
'들의' is used to indicate possession or association with multiple entities, referring to 'children' in this case.
아이들의 놀이터는 항상 웃음소리로 가득합니다.
The children's playground is always filled with laughter.
'들의' is used here to signify possession of 'leaves' by 'trees', referring to a plural subject.
나무들의 잎은 가을이 되면 아름다운 색으로 바뀝니다.
The leaves of the trees change into beautiful colors in autumn.
In this sentence, '들의' signifies association or possession, denoting that the 'opinions' belong to the 'students'.