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1·One prediction can be made with certainty.

有一个预测是可以确定的。

2·Whether the sound came from his head or from the hollow tree, that no one could say with certainty.

没有人能肯定地说，这声音是从他的脑袋里发出来的呢，还是从空树里发出来的呢？

3·No one knows with certainty.

没有人确切知道。

4·What is it that you know with certainty?

有什么是你认为自己确定了解的呢？

5·But one prediction can be made with certainty.

但是有一个预测是可以确定的。

6·Only one prediction can be made with certainty: we have no idea.

所能做的唯一确定的预言是：我们不知道。

7·Politicians, and the voters who elect them, are more comfortable with certainty.

政客和选举这些人的选民喜欢确定性。

8·This records a future event where you do not know the actual time with certainty.

这记录不知道确切时间的未来事件。

9·You can't look at a label and know with certainty what files are associated with it.

你不能查看标签和知道特定关联到它的文件。

10·At present, we simply do not have enough data to answer this question with certainty.

目前，我们根本没有充分的数据确切回答这一问题。