John will be a very valuable addition to that team.
However, he is still a valuable addition to an army.
They were a valuable addition to the town's economy.
He was about to get a very valuable addition to his education.
Together, they represent a valuable addition to contemporary thought and culture.
So it is a valuable addition to the pet tank.
So we think he will be a very valuable addition to our store management.
It is a very valuable addition to my collection of fine art.
All will get a valuable addition to their college applications.
"I do believe that you are the most valuable addition to our household in a long time, young lady!"