Hello guys.

大家好。

Glad to meet you.

很高兴见到你们。

Do you know who I am?

你们知道我是谁吗?

I'm part of an army that's everywhere.

我是群体中的一部分，无处不在。

What?

什么?

You don't see us around you?

你看不到在你周围的我们吗?

We're very, very, very tiny.

我们非常,非常,非常小。

You can't see us with open eyes.

你睁着眼睛也看不到我们。

You can only see us under a microscope.

你只能在显微镜下看到我们。

But we're everywhere.

但我们无处不在。

On the doorknob, on the table, on your skin, everywhere.

门把手,桌子上,皮肤上,随处可见。

We're also called microbes as we can only be seen under a microscope.

我们也被称为微生物，只能在显微镜下看到。

And some people call us germs, too.

有些人也叫我们细菌。

Germs, yes, germs!

细菌,是的,细菌!

We can cause many diseases.

我们会引起许多疾病。