to keep one's nose to the grindstone
01
to continuously put a lot of effort into doing something
![to [keep|put] {one's} nose to the grindstone definition and meaning](https://cdn.langeek.co/photo/41658/original/?type=jpeg "to [keep|put] {one's} nose to the grindstone definition and meaning")
Idiom
Informal
例子
They put their noses to the grindstone, working hard to build their business.
to continuously put a lot of effort into doing something
IdiomInformal
