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Jyutping lou5 gaau1 cing4
Pinyin lǎo jiāo qíng

Definitions (Wiktionary)
  1. noun
    long-standing friendship

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Jyutping lou5 gaau1 cing4
Pinyin lǎo jiāo qing

Definitions (CC-CANTO)
  1. Old friend; go way back
Definitions (Wiktionary)
  1. noun
    long-standing friendship
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)