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Jyutping jat1 paak3 zik1 hap6
Pinyin yī pāi jí hé

Definitions (CC-CEDICT)
  1. lit. to be together from the first beat (idiom)
  2. to hit it off
  3. to click together
  4. to chime in easily
Definitions (粵典–words.hk)
  1. 動詞
    初次​見面​就​相處​得​好好
    to fit in readily; to become good partners quickly; to get on like a house on fire; to get along famously
    • 佢哋兩個一拍即合,合作得好好。
      佢哋两个一拍即合,合作得好好。
      Those two get along really well and they work smoothly together.
Definitions (Wiktionary)
  1. phrase, idiomatic, of two parties
    to hit it off immediately; things fit together at one go
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    佢哋两个一拍即合,合作得好好。
    佢哋兩個一拍即合,合作得好好。
    • Those two get along really well and they work smoothly together.