https://blog.gongquiz.com/2022/06/07/%ec%b0%bd%eb%ac%b8-%eb%ac%bc%ea%b5%ac%eb%a9%8d-%eb%82%b4%ea%b8%b0-window-frame-hole-water-hole-%e3%83%a8/
창문 물구멍 내기 (window frame hole ,,water hole ) ヨ