靈機一動 [灵机－动]

Jyutping ling4 gei1 jat1 dung6
Pinyin líng jī yī dòng

Definitions (CC-CEDICT)
  1. a bright idea suddenly occurs (idiom); to hit upon an inspiration
  2. to be struck by a brainwave
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be struck by a brainwave; to hit upon a clever idea
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #2655