bacteria virus的用法和樣例：
例句
- That's because estrogen confronts a certain enzyme that often hinders the body's first line of defense against bacteria and viruses.
那是因為雌激素會對抗一種特定的酶，這是一種會妨礙身體防禦細菌病毒的第一道防線的酶。 - As their name suggests, these infect bacteria.
噬菌體，顧名思義它們能感染細菌。 - Bacteria may be infected with viruses called bacteriophages.
有一種稱為噬菌體的病毒可以感染細菌。
