You should never let anyone like that in unless you are expecting them.

了解的人就能让他们这么进入。

But there's just a lot we don't know.

但现在还有多我们了解的情况。

They know enough to know that there's a lot they don't know.

他们清楚地知道自己还有多了解的事情。

A " newton" of things we don't know about the universe.

我们对宇宙了解的东西有“多 ”。

So in the headline, the mystery illness is the thing that people don't understand.

所以在标中，神秘疾病是人们了解的事情。

There's a lot that researchers don't know about it.

对于这种疾病，科学家还有多了解的地方。

There's still much that we do not understand about how the immune system functions.

关于免疫系统的功能，我们还有多了解的地方。

Finally, being able to explain words and ideas which you don't know is also important.

最后，有能力解释你了解的词汇和想法也是的。

She saw something awful in the very simplicity she failed to understand.

她正是在这种她所了解的单纯之中看到了什么可怕的东西。

I think almost all of them are on deep branches of life that we don't know anything about.

我认为几乎所有的人都处于我们了解的生命的深层分支。

So the myth tried to give people an explanation for something they could not understand.

如此这般，神话的作用便是为人们了解的事物寻求一令解释。

Of course you don't know the virus down there.

当然我们了解那里的病毒。

The Essex Serpent is the unknown and we fear what we don't understand. - Yeah.

艾塞克斯之蛇是未知的，我们害怕我们了解的东西。- 对。

She does not understand the nature of an oath.

她了解誓言的本质。

You do not know the power of the dark side.

你们了解黑暗的能量。

John doesn't seem to be awake to the dangers of smoking.

约翰似乎了解抽烟的危险。

In honor of the occasion, here's seven things you might not have known about the groundhog.

为了纪念这一时刻，我们列出了你可能了解的有关土拨鼠的7件事。

What's something most people don't know about you?

别人最了解你的地方是什么？

He was concerned about those who do not.

他对了解情况的人表示担心。

It's correct. I mean, we don't know anything about their claim.

没错。我们并了解他们的申请。