1. 我們不能用肉眼看到細菌。
   We can not see bacillus with eyes.
2. 細菌能從許多途徑侵入我們。
   The bacillus can attack us from many ways.
3. 細菌會侵入有機體。
   Germs may invade the organism.
4. 消毒劑滅殺細菌。
   Disinfectant kills germs.
5. 細菌用肉眼看不見。
   Germs are invisible to the naked eye.
6. 細菌太小，肉眼看不見。
   Bacteria are too small to see with the naked eye.
7. 許多疾病是由細菌引起的。
   Many diseases are caused by bacteria.
8. 在實驗室能夠繁殖細菌和其他生物。
   It is possible to multiply bacteria and other living organisms in the laboratory.

細的英語翻譯：

菌的英語翻譯：