Not for certain I don't, and neither do you.

我不能确定 你也不能确定。

But I can't be sure that that is true.

但我不能确定这是真的。

But we still don't know anything for sure.

不过目前我们还不能确定。

But we don't know that answer for sure.

不过目前我们不能确定答案。

Not entirely sure who I can trust.

我不能确定我能信谁。

I just can't identify what it is.

我只是不能确定它是什么。

Please. We don't really know that for sure.

得了吧 这事我们又不能确定。

OK. We don't know that for sure.

好吧。我们还不能确定。

Yeah, it's unclear at the moment.

目前还不能确定动机。

But WHO officials are not sure of the exact number.

但是世卫组织官员不能确定具体数字。

We still can't say for certain what exactly is going on.

我们仍然不能确定到底发生了什么。

We don't know for a fact that North Korea is behind it.

我们不能确定发动攻击的就是朝鲜。

We're not even sure Carcharodon Megalodon went extinct.

我们甚至不能确定巨齿鲨已经灭绝。

There is no known connection that he has to the school.

目前不能确定他是否与学校有联系。

Well, at this point, we don't know if he did this by himself.

目前我们还不能确定枪手是否单独作案。

Can't be certain it's Arthur West's, of course, but..

不能确定这就是亚瑟·韦斯特的。

But we can't be sure he's even visited them.

但是我们不能确定他甚至会来这里坐坐。

But we can't be quite sure until the inquiries are over.

不过在调查结束之前我们还不能确定。

Hmm, not sure about that. I get terrible travel sickness.

嗯，我不能确定。我晕车很严重。

I'm not sure what it was about, but that's the latest rumor that's going on.

不过我不能确定，这是目前的最新传言。