We began tracing him after he started asking questions about Trill's defense network.

The police couldn't begin tracing the boat till Anna got a name or registration number off the wreck.

He stepped forward, feeling his hands lift and begin tracing an ordered pattern in the air.

The medical investigators are about to begin tracing the individuals who gave the blood that the organ donor received before death.

There were two Federal agents with her and they began tracing his call from a cellular phone.

She was soon eager to return to the house, to begin tracing another line.

Instead, a scanning beam flashed into being and began tracing its way across the bridge.

He began tracing the map in the carpet again.

He knelt down and began tracing a ship's outline in the rust.

He began tracing the outlines of the shadows directly on the pages in pencil.