sheathed bacteria

例句：

1. 1.The researchers found that the sheathed bacteria could be used to treat skin infections.
   研究人员发现，被保护的细菌可以用来治疗皮肤感染。
2. 2.The sheathed bacteria were able to survive in harsh environments.
   这些被保护的细菌能够在恶劣的环境中生存。
3. 3. The sheathed bacteria were injected into the wound to fight against infection.
   将这种被保护的细菌注射到伤口中以对抗感染。