bacteria

美 [bækˈtɪriə]
英 [bækˈtɪəriə]
  • n.细菌
  • 网络细菌域;细菌界;微生物
单数:bacterium  
bacteria
n.
1.
细菌the simplest and smallest forms of life. Bacteria exist in large numbers in air, water and soil, and also in living and dead creatures and plants, and are often a cause of disease.

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