有人称它为“暗能量”，但是那只是物理学家们表达“我们没有线索”的一种替代方式。

It has been labelled "dark energy", but that is really physicists' shorthand for "we haven't got a clue".

youdao

这个问题我们一开始并没有线索。

In this case, we at first had no clue.

youdao

All of that means we need to explain why these folks do what they end up doing, and we have some hints, but of course we do not know with any certainty or any confidence.

综上所述,我们来想想为什么这些人,要背井离乡呢,我们有一些线索,但是我们并没有有力的证据

耶鲁公开课 - 古希腊历史简介课程节选

We know that the Mycenaeans, or at least some small number of them could write, because we have the Linear B script, which we can read. There is no clue that there is such a thing as writing in the Homeric poems.

我们知道迈锡尼人中,至少小部分,是会写作的,因为我们找到了B类线形文字的遗稿,我们能够解读,但在荷马史诗中,却并没有任何线索表明写作这一点

耶鲁公开课 - 古希腊历史简介课程节选