BREAK SWEAT
    
Meaning of BREAK SWEAT in English
	
( BrE ) ( NAmE break a ˈsweat )
( informal ) to use a lot of physical effort :
He hardly needed to break sweat to reach the final.
	
	
	Oxford Advanced Learner's English Dictionary.
    	Оксфордский английский словарь для изучающик язык на продвинутом уровне.
	2005