onset

英 /ˈɒnset/ 　美 /ˈɑːnset/

The sudden onset of rain sent us running indoors.

突然下起雨来，我们赶紧跑进屋里。

Regular physical activity may delay the onset of certain chronic diseases and improve overall wellbeing.

经常进行体育活动可能延缓某些慢性病的发生，并改善整体健康状况。

搭配

the onset of symptoms 症状的出现the onset of winter 冬季的来临sudden onset 突然发作delay the onset 延缓发生

常用the onset of，多指疾病或不利情况的开始。