She concentrated on the voice, then the face, of Captain Picard.

He will take an immediate sabbatical following his retirement to concentrate of his health.

He had been standing perfectly still while concentrating on a way out of this tragic predicament.

Gerard gave up and concentrated on seeing what he could of life in Solanthus.

Why would the Romulans be concentrating so much of their firepower there?

The media tends only to concentrate on what makes good headlines and of course that's the bad stuff.

In the difficult period that followed, Gunnell appears to have left acting to concentrate of management.

Rich pictures should concentrate on both the structure and the processes of a given situation.

Areas we can concentrate on: first of all, to prevent infection - this is very important.

They naturally concentrate on the interesting bits, and, so, of course, do the police themselves.