Moderately easy and fairly flat across cliff paths and farmland.

If you have a fairly flat commute, simply alter your speed at the same time intervals.

While everyone else seemed to be straining, he wandered around, often enough playing fairly flat, rarely under any pressure.

It's fairly flat, but the actual undulations in the fairway move so much.

But the bulk of these savings are down to the dash for gas - overall, carbon emission levels have remained fairly flat.