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Jyutping bat1 baai6
Pinyin bù bài

Definitions (Wiktionary)
  1. verb
    to not lose; to be not defeated; to be invincible; to be unbeaten
Examples (Wiktionary)
  1. Mandarin
    不败之地
    不敗之地
    bù bài zhī dì
    • invincible position