The Healiocopter arrived and, receiving the patient, clacked away.
The student at the terminal was one of five in down coats and stocking caps clacking away on keyboards.
While I clacked away at the keyboard, this once restless creature would lie contentedly for hours.
I read them to her and she clacked away on her computer.
It was empty but for row upon row of computers clacking and humming away.
I reached over while my tongue clacked away on automatic pilot.
Every- body's tongue was clacking away after that.
He heard footsteps clacking away, and he tried to relax.
The sounds of several typewriters clacking away confirmed that this was a working area.
He clacked away at the big upright machine.