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Jyutping zing1 wai6 tin4 hoi2
Pinyin jīng wèi tián hǎi

Definitions (CC-CEDICT)
  1. lit. mythical bird Jingwei tries to fill the ocean with stones (idiom); futile ambition
  2. task of Sisyphus
  3. determination in the face of impossible odds
Definitions (Wiktionary)
  1. phrase, idiomatic
    dogged determination
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)