The human voice is the most natural and powerful vehicle for musical self-expression.

Increasingly big and powerful vehicles have blasted off from dry land.

History proves the clubs to be powerful vehicles for political advancement.

It would be a powerful vehicle to bring nations together, decreasing the chances for international conflict.

They are some of the most powerful vehicles ever offered by Audi.

In fact, it is a much more powerful vehicle.

But advocates say the game format offers a powerful new political vehicle.

Books are still a most, maybe the most, powerful vehicle for these trips.

You are a powerful vehicle for peace, stability and prosperity in your own region.

The documentaries have become the powerful vehicle for dealing with social and political issues.