Now the engines had slowed right down, possibly to a speed of only seven knots.

Yet in the last two decades the engine of growth has slowed to a crawl.

Every time she made a major muscular movement, like shifting into a higher gear, the van's engine slowed.

After a time the engines slowed and we could hear the wheel turning.

Wilsonwas still hard at work on his drawings when the engine slowed then stopped.

The engines were slowing now, the speed dropping off.

The engines were slowing, the sound of water slipping past the plates dying away.

As he watched the tachometer, it appeared the engine was slowing.

Then some kind of horn sounded, and the engine slowed.

The engine slowed when the two stopped tanks came into sight.