We don't know anything about his past.

我们对他的过去一无所知。

We don't know how the transcript leaked.

我们不知道抄本是怎样泄露的。

We don't know whether he's alive or dead.

我们不知道他是死是活。

We don't know what life holds in store for us.

我们不知道等待我们的将是什么样的生活。

We don't know how this situation will shake out.

我们不知道这个局面会如何收尾。

Meeting Lisa has reminded me how we need help from people we don't know.

与丽莎的相遇提醒了我，我们需要陌生人的帮助。

Sometimes, when we don't know how to solve problems, we may get the advice from those who are experienced.

有时，当我们不知道如何解决问题时，我们或许可以从那些有经验的人那里得到建议。

We don't know exactly what the readers want, so it's quite hard to choose a widely accepted picture of the food.

我们不知道读者到底想要什么，所以选出一张能被广泛接受的食物图片是相当困难的。

We don't know how much money people get from popcorn sales, but film fans usually eat a lot of this salty food, especially when watching a horror film.

我们不知道卖爆米花能赚多少钱，但影迷通常会吃很多这种带咸味的食物，尤其是看恐怖电影的时候。

We don't know much about it.

我们对此了解不多。

We don't know how to cope with the situation.

我们不知道如何应对这种情况。

We don't know about the long-term consequences.

我们不知道长期的后果。

We should have to go on, for we don't know how to stop.

我们应该继续前进，因为我们不知道怎样停下来。

First, we want to see the giraffes, but we don't know how to get there.

我们先想去看长颈鹿，但是我们不知道怎样去。

We don't know exactly what the next future-minded frenzy will look like.

我们不知道下一个着眼未来的狂热会是什么样子。

"We don't know when we'll be able to restart", a company spokesman said.

“我们不知道什么时候才能重新生产。” 一位公司发言人表示。

The reason we don't know about a lot of them is that they have vanished entirely.

我们之所以不太了解它们，是因为它们已经完全消失了。

And the reason we don't know about a lot of them is that they have vanished entirely.

我们不了解它们的原因是它们已经完全消失了。

We don't know for sure how much mass our Sun's lost over the last four billion years.

我们不知道我们的太阳在过去的40亿年里损失了多少质量。

We like to group those things we don't know by comparing them with the things we know.

我们喜欢把我们不知道的东西和我们知道的东西进行比较。

We don't know a lot about the authors, and it's still contested somewhat about who they are.

我们对那些作者了解不多，而且对于他们是谁仍有些争议。

We seem to feel that some people are naturally creative, but we don't know how they got that way.

我们似乎觉得有些人天生就有创造力，但我们不知道他们是如何做到的。

We're hearing things like, "We don't know what the situation will be in six months so let's travel now".

我们听到这样的话，“我们不知道6个月后的情况，所以我们现在就出发吧”。

We don't know the answer, because studies done on how reliable this machine is have not yet been duplicated.

我们不知道答案，因为关于这台机器可靠性的研究还没有被重复。

With our present data, we don't know what precisely the interactions were between a primate and a big carnivore.

根据我们现有的数据，我们无法确切了解灵长目动物与大型食肉动物之间的相互作用是什么。

We know they smear a liquid on the tube, but we don't know where they secrete it from or what its chemical composition is.

我们知道它们在管上涂抹了一种液体，但我们不知道它们从哪里分泌出这种液体，也不知道它的化学成分是什么。

They did hunt and they also raised cereal crops and kept sheep, but we don't know why so many of the paintings are of hunting scenes.

他们确实狩猎，也会种植粮食作物、饲养绵羊，但我们不知道为什么有这么多画与狩猎相关。

We don't know how this works.

我们不知道这究竟是如何操作的。

We don't know yet. Oh, amazing.

我们现在还不知道，哦天啊。

But how much, we don't know.

但是多少合适呢，我们不知道。