https://m.terms.naver.com/entry.naver?docId=5874677&cid=43667&categoryId=43667
첫댓글 병립형과 연동형https://1004-tirol.tistory.com/m/305
첫댓글 병립형과 연동형
https://1004-tirol.tistory.com/m/305