Our working hypothesis is a partial skeleton having been brought to this place by ancient humans.

我们的研究假设是这具部分骨架被远古人类带到这个地方。

But science habitually assumes, at least as a working hypothesis, that general rules which have exceptions can be replaced by general rules which have no exceptions.

但是科学习惯性地假设， 至少作为一个工作假设， 有例外的一般规则可以被没有例外的一般规则所取代。

As a working hypothesis, I think we may take it that Prescott, the American criminal, used to live in the very room which our innocent friend now devotes to his museum.

作为一个可行的假设， 我认为我们可以认为美国罪犯普雷斯科特曾经住在我们无辜的朋友现在专用于他的博物馆的房间里。