This is the 9472nd most frequent Korean word.
경기도의
"Of Gyeonggi-do" (related to Gyeonggi Province in South Korea).
경기도의 modifies '학교' to specify the school is located in Gyeonggi Province.
그녀는 경기도의 학교에서 학생들을 가르쳐요.
She teaches students at a school in Gyeonggi Province.
경기도의 is used as a possessive modifier indicating that the nature belongs to Gyeonggi Province.
경기도의 자연은 정말 아름답습니다.
The nature of Gyeonggi Province is truly beautiful.
경기도의 is describing '전통 음식' (traditional food) as belonging to or originating from Gyeonggi Province.