英和和英

The train gathered speed.

The train speeded up [gathered speed].

The train gradually speeded up.

The train gained speed.

The train slows down little by little.

The train slowed down [up] its speed.

The train gained speed.

The train gathered speed.

the train is prompt

The train is traveling at speed.

The train slowed down and stopped.

the train moved ahead slowly

The train jerked forward.

The train came to a sudden stop.

He accelerated the car

The car was crowded, and I kept standing all the time.

The train is running smoothly.

The train crawled along.

The train slowed down as it approached the station.

the train arrived late

drive at a constant speed

The train gains speed and reaches over 100 kilometers per hour.

The train was very [terribly] crowded.

The car is stopping―at a stop.

The car has stopped owing to stoppage of current.

The train arrived on schedule.

Slow down. You're picking up speed.

That train resumes quickly.

The train was full.

The train was derailed.