Idiom
sweep away somethingsweep away (something)
1.
to get rid of something.
You will have to sweep away all your anger in order to improve your relations with your family.There was almost no wind to sweep the smog away.
2.
to destroy something.
The decision to close the lab meant that twenty years' work was swept away in a moment.Francis spent his last few years at home, until heart failure swept him away.