Gradually there was developing a two-way exchange in which the questions and answers were becoming very personal indeed.

But when candidates are asking people for money, it is a two-way exchange.

But some students are using fax machines to share in the events through a two-way exchange of information.

This opens the door for a two-way exchange between the entities.

And it becomes a two-way exchange, which is much more satisfactory.

He characterized his visits as "very much a two-way exchange."

The two-way exchange of specialized knowledge can bring benefits to the school librarian, teachers and pupils.

Here we can see the two-way exchange between waking consciousness and dream-consciousness.

If this means some two-way exchanges, so be it.

Get a two-way exchange going and we'll find out what the Gringg are really saying.