prokaryotic organism

例句：

1. 1.Prokaryotes are a type of bacteria that live in the oceans.
   原核生物是一种生活在海洋中的细菌。
2. 2. The discovery of antibiotics has greatly improved the treatment of bacterial infections.
   抗生素的发现极大地改善了细菌感染的治疗。
3. 3. Prokaryotes play an important role in maintaining the balance of ecosystems.
   原核生物在维持生态系统平衡中起着重要作用。