noun 다운로드 🔗공유 조사, 수사 The act of investigating; the process of inquiring into or following up; research, especially patient or thorough inquiry or examination Examples : "Despite thorough investigation, the perpetrator of the attacks remains unknown." 철저한 조사에도 불구하고, 공격의 범인은 여전히 알려지지 않았습니다. action process law police government science business essential toeic AI와 채팅어휘 게임독해 연습