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to leave no stone unturned
01
to do everything one can in order to achieve a goal, particularly when it involves finding or looking for something
![to [leave] no stone unturned definition and meaning](https://cdn.langeek.co/photo/42992/original/?type=jpeg "to [leave] no stone unturned definition and meaning")
例
The thorough investigation uncovered all relevant evidence, leaving no stone unturned in the search for the truth.
The lawyer tenaciously defended her client, leaving no stone unturned in her search for evidence.
The detective investigated the case diligently, leaving no stone unturned in the pursuit of truth.
He studied till all hours to prepare for the important exam, leaving no stone unturned in his preparation.
He left no stone unturned in his search for his natural mother.
