https://blog.gongquiz.com/2021/04/08/%ec%8b%9c%eb%8f%99%ec%9d%84-%ea%b1%b8%eb%a9%b4-%eb%94%b1%eb%94%b1%eb%94%b1%ec%86%8c%eb%a6%ac%ec%9d%98-%ec%a0%95%ec%b2%b4%e2%80%bc-%ec%99%9c-%ce%bb/
시동을 걸면 "딱딱딱"소리의 정체~~‼???? 왜~??? λ