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Jyutping bat1 zaap6 seoi2 sing3
Pinyin bù xí shuǐ xìng

Definitions (Wiktionary)
  1. verb
    to not know how to swim
Examples (Wiktionary)
  1. Mandarin
    不习水性
    不習水性
    bù xí shuǐ xìng
    • to not know how to swim