The sand continued to tick against the window.

In the long run, regardless of man's efforts, the experts say, the sands will continue to shift.

Meanwhile, the two sand and gravel firms continued to use the sea lock and the pound to carry on their business.

As they walked, crusted sand crunched under their boots and Spock continued his scans.

The sand continued to tighten its embrace, burning the wound in his leg.

The sand continued to run as if it still stood upright.

Inside, the sand continued to trickle down onto the accumulated pile in the bottom.

The sand continued to flow, but sideways.

The sand continued to trickle away.

The sand then continues to build up, eventually forming a sand dune.