bacteria enter the root hair cell

例句：

1. 1.Bacteria are microscopic organisms that live in the soil and water.
   细菌是生活在土壤和水中的微小生物。
2. 2.The bacteria in the soup may be harmful to humans.
   汤里的细菌可能对人类有害。
3. 3. Researchers have discovered new antibiotics that can kill bacteria.
   研究人员发现了可以杀死细菌的新抗生素。