thunderclaps
n. 雷声,霹雳( thunderclap的名词复数 ); 突然而可怕的事情或消息
A thunderclap is a short loud noise that you hear in the sky just after you see a flash of lightning.
The increasing distance between thunderclaps meant the storm was moving away.
雷声隔得一次比一次久,这意味着暴风雨正在过去.