受污染水中的细菌可能导致严重的感染。

___Bacteria in contaminated water can cause serious infections.

抗菌肥皂旨在杀死你手上的有害细菌。

Antibacterial soap is designed to kill harmful ___bacteria on your hands.

在实验室里，他们培养了一种特定的细菌菌株用于研究。

In the lab, they cultivated a specific strain of ___bacteria for research.