Rioters hurled a brick through the car's windscreen.
暴徒把一块砖猛地扔向汽车,砸破了挡风玻璃。
《牛津词典》
The moment the windscreen shatters, you should begin to take your foot off the accelerator.
在挡风玻璃破碎的那一刻,你应该停止踩油门。
Hence the analogy that likens the conduct of monetary policy to driving a car with a blackened windscreen, a cracked rear-view mirror and a faulty steering wheel.