For most of the season, he was not a major contributor.

The energy industry is a major contributor to the economy.

He was a major contributor to the campaign as well.

Some of the recent major contributors also gave money to the campaign earlier.

I'm coming back to the team to be a major contributor.

With her husband, she was a major contributor to the development of our Center.

He is a major political contributor to the Democratic party.

The government is a major contributor to the development of new technology in many ways.

"The federal government will be a major contributor to this development".

"Everybody else, I think, should be thinking of themselves as a major contributor."