The executive branch, which concentrated great power under its control.

If she was ever going to work on the kids, it would be right then, when they're concentrating on something else and under her thumb.

Concentrate on the men under your command - find the weak ones and remove them.

It is extremely difficult to concentrate on the cheap realities of Campaign '76 under these circumstances.

"I suppose you can't concentrate under the circumstances," he conceded.

He fell silent for a time, concentrating on the drive and the feel of the car under his command.

Pushing that problem aside, he concentrated on the subject under discussion.

Let him concentrate on the reds under the bed.

I could see him trying to concentrate under the dean's intense eyes.

The new embassy will concentrate all the employees under one roof.