bacterium
🇺🇸
/bækˈtɪriəm/
🇬🇧
/bækˈtɪərɪəm/
noun
A2
A tiny living thing with one cell that can be good or bad for people and the world.
Bacteria are so tiny that we can't see them without a special tool, and they live all around us.
细菌非常微小，我们没有特殊工具就看不见它们，它们无处不在。
B1
A very small living thing that's part of nature and can help or hurt bigger things.
The yogurt has good germs called bacteria that help us when we eat.
酸奶中有一种对我们有益的细菌，当我们吃的时候它们帮助我们。
translation
细菌
词形变化
Plural
bacteria