megabacterium

例句：

1. 1.The bacteria that cause this disease are resistant to antibiotics.
   导致这种疾病的细菌对抗生素具有抗药性。
2. 2.Researchers have discovered a new type of bacteria that can survive in extreme environments.
   研究人员发现了一种能在极端环境中生存的新型细菌。
3. 3.The bacteria in the soil play an important role in maintaining the balance of ecosystems.
   土壤中的细菌在维持生态系统平衡中起着重要作用。