to break a sweat
01
かなり苦労する, 一汗かく
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")
慣用句
くだけた
例
You won't pass this exam unless you're ready to break a sweat.
かなり苦労する覚悟がなければ、この試験には受からないよ。
02
to begin sweating because of physical effort or exertion
例
He barely broke a sweat during the short workout.
