The engineers struggled to stop the runaway train before it reached the city.
Инженеры пытались остановить неуправляемый поезд, прежде чем он достиг города.
Definitions
A runaway train refers to a train that is out of control and unable to stop, often due to a failure in the braking system or operator error. It can also metaphorically describe a situation or process that is spiraling out of control.