This is the 2553rd most frequent Korean word.
발전과
"Development and" or "advancement and" (context-dependent).
Here, "발전과" reflects progress as a collaborative and successful development of a nation, coupled with prosperity.
국가의 발전과 번영은 국민의 노력에 달려 있습니다.
The progress and prosperity of a nation depend on its citizens' efforts.
In this sentence, "발전과" denotes the growth and improvement within the field of science and technology.
과학 기술의 발전과 함께 우리의 생활은 더 편리해졌습니다.
With the advancement of technology, our lives have become more convenient.
This usage of "발전과" emphasizes enhancement in education, associating it with quality improvement.