No one knows of course, but we make educated guesstimates and try to communicate them to an enquiring public.

没人知道答案，但我们已经进行了专业的推测，并试图把结果传达给满腹疑问的公众。

The $700 billion figure for the Troubled Asset Relief Programme was plucked from the air, the roughest of guesstimates.

为实施问题资产救济方案而动用的7000亿美元化作了空气，成了非常瞎掰的事。

While some people are better guesstimators than others, reliance on guesstimates is inadvisable in general as their accuracy can be very low, which can easily lead to false expectations.

有些人可能比其它人评估的更好，因此依赖于这样的评估是不合适的，因为它们的精度非常低，可能导致错误的预期。