verb 다운로드 🔗공유 다시 구멍을 뚫다 To bore through an existing hole, generally to correct its shape. Examples : "The machinist rebored the engine cylinder to ensure it was perfectly round. " 기계공은 엔진 실린더가 완벽하게 둥글도록 다시 구멍을 뚫었습니다. technical machine work industry AI와 채팅어휘 게임독해 연습