bacteria

这种感染是由肺部的细菌引起的。

The infection was caused by ___bacteria in the lung.

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.