No one seems to know for sure.

We now know for sure that there Is Indeed rocket research going on beneath Colditz.

我们现在可以确定确实有火箭研究,就在寇地兹的下面.

One thing the man-creatures know for sure: making models of themselves is no cinch.

人这种造物可以肯定的一件事情是: 建造自己的模型绝不是什么轻而易举的事情.

Do you know for sure whether you're doing Episode III?

你能否确定自己会出现在EP3里?

It's impossible to know for sure how much you're consuming.

要想知道确切的食盐摄取量几乎是不可能的事情.

And the only way you will know for sure is to jump in with both feet.

你唯一能确定的就是全情投入.

Do you know for sure exactly what happened?

你真的知道发生了什么事 吗 ?

Do you know for sure?

你确定 吗 ?

At least we know for sure that teams are interested McGrady.

最起码,我们知道确实有球队对麦迪有兴趣.

There's two things I know for sure.

世上有两件事我可以确定.

I don't know how you can say that.

真想不到你竟说那话。

I didn't know how to tell you.

我不知道该如何告诉你.

We don't know how the transcript leaked.

我们不知道文字本是怎么泄露出去的。

You know how prickly she is.

你知道她有多么爱发脾气。

And a few weeks later when a tiny chick hatched, their happiness know no bounds.

几个星期后,一只小鸟破壳而出, 它们欣喜万分.

I know of a shop where you can get the things cheaper.

我听说有一家商店,在那儿的东西较便宜.

You should let him know of this matter.

这件事你得跟他通个气.

The best method I know of.

我所知道的最好的方法.

Do you know of a really good hotel in this city?

你知道这个城里有家真正像样儿的好旅馆 吗 ?

Do you know of any plays that will be opening in the next few weeks?

你听说最近几个星期内要演什么戏 吗 ?

I don't know the writer, but I know of him.

我不认识这个作家, 但我听说过.