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Jyutping kut3 jin4 hoi1 long5
Pinyin huò rán kāi lǎng

Definitions (CC-CEDICT)
  1. suddenly opens up to a wide panorama (idiom); to come to a wide clearing
  2. fig. everything becomes clear at once
  3. to achieve speedy enlightenment
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, idiomatic
    to suddenly see the light; to be suddenly enlightened
  2. phrase, idiomatic
    the view instantly clears up; open and clear
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)