to break a sweat
01
to need to put a lot of hard work or energy into doing something
![to [break] a sweat definition and meaning](https://cdn.langeek.co/photo/44232/original/?type=jpeg "to [break] a sweat definition and meaning")
idiom
informal
例
That test was so easy, I aced it without even breaking a sweat.
02
to begin sweating because of physical effort or exertion
例
He barely broke a sweat during the short workout.
