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")
例子
He left no stone unturned in his search for his natural mother.
to do everything one can in order to achieve a goal, particularly when it involves finding or looking for something
