dobrze działający in inglese:

That town looked prosperous.

The guests wished the happy couple a long and prosperous life.

he's very prosperous

the more prosperous regions of the country

With economic expansion comes the promise of a more prosperous future.

The prosperous company suffered a little after the economic recession.

I am in favor of helping the prosperity of all countries because, when we are all prosperous, the trade of each becomes more valuable to the other.

Best wishes for a happy and prosperous New Year.

Formerly this harbor was prosperous.

They urged him in vain to sell them his prosperous firm.