速度 (sù dù): ความเร็ว

This car's speed is very fast.

Please speed up, we're going to be late.

He types very quickly.

On highways, there is a speed limit for cars.

This car's speed is very fast.

We need to increase the speed of work efficiency.

The tempo of this piece is relatively slow.

His running speed is faster than mine.

The economic growth rate has slowed down.