The cage is used to keep the loose baseballs within a certain range so that they're easy to pick up and are not lost.

Central banks intervene to try to keep them within a narrow range.

You will need to keep your blood sugar levels within a safe range.

This helps keep blood sugar levels within a range that is safe for the body throughout the day.

The cooling rate must be kept within a certain range.

They learned to monitor their weight (most of the registry study participants weighed themselves more than once a week) to keep within a 10-pound range.

"Try to keep them within a narrow range, like 35 to 45 degrees."

Lithium carbonate blood levels need to be kept within a safe range.

Under normal conditions, this keeps your body temperature within a narrow, safe range.

Still, some governments strive to keep their currency within a narrow range.