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Jyutping jyu4 jan4 dak1 lei6
Pinyin yú rén dé lì

Definitions (CC-CANTO)
  1. 'when two sides quarrel, it is always the third party who benefits'
Definitions (Wiktionary)
  1. phrase, idiomatic
    it is always the third party who benefits (when two sides quarrel)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    渔人得利。
    漁人得利。
    yú rén dé lì 。
    • Someone else profits from the situation.