This is the 1229th most frequent Korean word.
지속적인
"Continuous" or "ongoing."
In this sentence, "지속적인" describes the ongoing, unbroken nature of the effort that contributes to achieving success.
지속적인 노력이 성공의 비결입니다.
Continuous effort is the key to success.
Here, "지속적인" emphasizes the need for a sustained and ongoing focus in efforts to protect the environment.
환경 보호를 위해 지속적인 관심이 필요합니다.
Continuous attention is necessary for environmental protection.
In this context, "지속적인" modifies "지원" (support) to highlight the need for consistent and ongoing assistance.