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Jyutping zi3 sei2 kwan2
Pinyin zhì bìng jùn

Definitions (Wiktionary)
  1. noun
    pathogenic bacteria; bad germs
    (syn.) 病菌, 病原菌

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Jyutping zi3 sei2 kwan2
Pinyin zhì bìng jūn

Definitions (CC-CEDICT)
  1. pathogenic bacteria
Definitions (Wiktionary)
  1. noun
    pathogenic bacteria; bad germs
    (syn.) 病菌, 病原菌