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Jyutping fu6 zi1 dung1 lau4
Pinyin fù zhī dōng liú

Definitions (CC-CEDICT)
  1. to commit to the waters (idiom); to lose sth irrevocably
Definitions (Wiktionary)
  1. phrase, idiomatic
    Synonym of 付諸東流/付诸东流 (fùzhūdōngliú, “to go in vain; to go down the drain; to be completely wasted”).
    (syn.) 付诸东流, 付諸東流