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Jyutping cang4 ging1 cong1 hoi2 naan4 wai4 seoi2
Pinyin céng jīng cāng hǎi nán wéi shuǐ

Definitions (Wiktionary)
  1. phrase, idiomatic
    been there, done that
    (syn.) 曾经沧海, 曾經滄海
    • 曾經滄海難為水亞洲首富李兆基徘徊於房地產陷阱
      曾经沧海难为水亚洲首富李兆基徘徊于房地产陷阱
      céng jīng cāng hǎi nán wèi shuǐ yà zhōu shǒu fù lǐ zhào jī pái huái yú fáng dì chǎn xiàn jǐng
      Been there, done that ... Asia's richest man, Li Zhaoji, avoids being sucked into the real estate
Examples (Wiktionary)
  1. Mandarin
    曾经沧海难为水亚洲首富李兆基徘徊于房地产陷阱
    曾經滄海難為水亞洲首富李兆基徘徊於房地產陷阱
    céng jīng cāng hǎi nán wèi shuǐ yà zhōu shǒu fù lǐ zhào jī pái huái yú fáng dì chǎn xiàn jǐng
    • Been there, done that ... Asia's richest man, Li Zhaoji, avoids being sucked into the real estate