This is the 4037th most frequent Korean word.
인류가
"인류가" means "humanity" or "humankind" in English.
Here, "인류가" is used as the subject of the sentence, referring to humanity collectively as an entity that acts.
인류가 새로운 기술을 개발하며 앞으로 나아가고 있습니다.
Humanity is advancing forward by developing new technologies.
In this sentence, "인류가" introduces the context of the problems humanity, as a collective subject, faces.
인류가 직면한 문제들 중 가장 시급한 것은 환경 문제입니다.
The most urgent issue among the ones humanity faces is the environmental issue.
"인류가" is applied to describe humanity as the actor who learned from past mistakes, emphasizing actions attributed to humanity.