He ducked low and was through, inside, in three steps.

You duck low as the ground starts to fall away on the other side.

He ducked low, hit the floor, tried to roll away.

The Warrior ducked low and moved in under the window.

He ducked low and went through the now open secret door.

He had to duck low as he went from one to the other.

I ducked low, listened for a second, then started to run.

She ran across the street and ducked low behind a hedge.

Ducking low, they ran for the edge of the roof.

Richard ducked low as he ran back, but the expected attack didn't come.