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Jyutping zam3 gwo1 doi6 daan3
Pinyin zhèn gē dài dàn

Definitions (Wiktionary)
  1. phrase, idiomatic
    to be vigilant and ready for battle

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Jyutping zam3 gwo1 doi6 daan3
Pinyin zhěn gē dài dàn

Definitions (CC-CEDICT)
  1. to wait for dawn, one's head resting on a spear (idiom)
  2. fully prepared and biding one's time before the battle
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be vigilant and ready for battle