noun 다운로드 🔗공유 악화, 저하 The process of making or growing worse, or the state of having grown worse. Examples : "The deterioration of the student's grades was a concern for his parents. " 학생의 성적 악화는 그의 부모에게 걱정거리였다. condition process negative toeic AI와 채팅어휘 게임독해 연습