Wow, so not sure whether he's a mythical character or a real character.

哇，所以你不能确定是神话人物还是真实存在的人物。

But Naomi Kikoler and other anti-genocide advocates are not so sure.

但是娜奥米·基可勒和其反种族灭绝倡导者不能确定这种说法。

They're not certain how contagious people are when they get it.

当有人感染时，们也不能确定这些感染者的传染性有多强。

So while there's hope that Canada will join in, it's not a done deal.

因此，管加拿大仍有望加入该协议，情况仍不能确定。

And I’m not always sure how much of a certain thing is bad.

而且我总是不能确定某些成分的含量达到多少是不健康的。

It's possible but not certain that they were mixed with other chemicals.

有可能，但不能确定它们是否与其物质混。

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

但我不能确定这是真的。

I'm not sure if I could handle a salvo of angry words from you.

我不确定我能不能承受得住你一连串的气话。

If you are not completely sure that something is food, do not eat it.

如果你不能完全确定某样东西是食物，那你就不要食用它。

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

嗯，我不能确定。我晕车很严重。

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。

Um, I'm not sure I can do that.

呃，我不确定能不能这么做。

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。

It remains uncertain what messages the bears were sending to one another.

至于马来熊在互相传递什么信息，目前仍不能确定。

I'm not so sure about that. All right, thanks, Mike.

这点我可不能确定。好吧，谢谢你，迈克。

I'm not sure I can make it.

我不确定我能不能去。

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

目前不能确定是否与校有联系。

Then compare it to a bottle you're not so sure about.

然后将其与不能确定真假的那瓶药进行比较。

So where is Dorian going to go? Meteorologists still don't know.

那“多里安”要去往哪里？目前气象家仍不能确定。

One thing archeologists and geologists don't know exactly is where Stonehenge's stones were mined.

考古家和地质家不能确定的是，修建巨石阵的石块采自何处。