The debate centered on how fast oil prices would rise.

Until recently, the debate has centered on the plan's cost to the taxpayer.

Today's debate among the five permanent members, in fact, centered on how tough the statement should be.

The debate has so far centered almost exclusively on the first alternative.

Recent debate has centered on the environmental value of the ancient forests.

The debate also centered on the museum's role in presenting Holocaust history.

But the debate centered on the economic issues of competitiveness, jobs and budget priorities.

The greater debate centered on whether the Senate or the president would be best able to identify suitable candidates.

The debate over this protocol centered on two conflicting ideas.