to break one's back
01
to work as hard as one can to achieve a particular result
![to [break] {one's} back definition and meaning](https://cdn.langeek.co/photo/41764/original/?type=jpeg "to [break] {one's} back definition and meaning")
Idiom
Informal
예시들
If they want to succeed, they will have to break their back to prepare for the competition; it wo n't be easy.
to work as hard as one can to achieve a particular result
IdiomInformal
