This is the 19021st most frequent Korean word.
아동들을
"Children" (plural, used as an object).
This sentence uses the word "아동들을" (children) in the context of referring to the group targeted by the education. Here, "아동들" refers to children, and "을" indicates being the object of the sentence.
아동들을 위한 교육은 중요합니다.
Education for children is important.
In this sentence, "아동들을" acts as the object of the ability to see. "아동들" refers to children observed at the park, and "을" denotes them as the direct object of the verb "보았습니다" (saw).
공원에서 아동들을 볼 수 있었어요.
I was able to see children at the park.
"아동들을" here denotes the group intended to be protected. "아동들" refers to children, and "을" is used to mark them as the object of the action "보호하기 위해" (to protect).