一雨成秋 yī yǔ chéng qiū

DEFINITIONS

  1. a sudden shower towards the end of summer brings an abrupt arrival of autumn (idiom)

CHARACTERS

一 yī one; a, an; alone
雨 yǔ rain; rainy; KangXi radical 173
成 chéng completed, finished, fixed
秋 qiū autumn, fall; year