bacterid

例句：

1. 1. The bacteria in the soil can contaminate food.
   土壤中的细菌可以污染食物。
2. 2. The bacterium is responsible for causing disease.
   这种细菌是导致疾病的罪魁祸首。
3. 3.Bacterium is a common term used to describe microorganisms that cause diseases.
   细菌是一种常用的术语，用来描述引起疾病的微生物。