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Jyutping lou5 soeng1 sik1
Pinyin lǎo xiāng shì

Definitions (Wiktionary)
  1. noun
    old acquaintance; old friend
    (syn.) 故舊, 老朋友, 舊故, 旧知, 故友, 故交, 以前的朋友, 旧交, 故人, 故知, 老朋, 故旧, 舊友, 旧故, 老盆友, 舊交, 旧友, 舊知

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Jyutping lou5 soeng1 sik1
Pinyin lǎo xiāng shí

Definitions (Wiktionary)
  1. noun
    old acquaintance; old friend
    (syn.) 故舊, 老朋友, 舊故, 旧知, 故友, 故交, 以前的朋友, 旧交, 故人, 故知, 老朋, 故旧, 舊友, 旧故, 老盆友, 舊交, 旧友, 舊知
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    Smith 先生和我是老相识。
    Smith 先生和我是老相識。
    smith xiān sheng hé wǒ shì lǎo xiāng shí 。
    • Mr Smith and I have been acquainted with each other for a long time.