風雲變幻 [风云变－]

Jyutping fung1 wan4 bin3 waan6
Pinyin fēng yún biàn huàn

Definitions (CC-CEDICT)
  1. changeable situation (idiom)
Definitions (粵典–words.hk)
  1. 語句
    比喻​事物​、​局勢​變化​不定
    (of a situation) unstable
Definitions (Wiktionary)
  1. phrase, idiomatic
    changeable situation; volatile situation