thorough search
definitions
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An exhaustive, careful, and detailed examination or investigation intended to locate something or someone.ko: 철저한 수색
examples
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The senior members of the family decided that a thorough search must be conducted to find the owner of the box.
가족의 어른들은 상자의 주인을 찾기 위해 철저한 수색을 실시해야 한다고 결정했다.