vt. fus.(estimate)
to guess at sth
+ number, size猜测；估算
We can only guess at the number of deaths it has caused.我们只能估算它造成的死亡数。
to guess at how猜测如何…
Researchers can only guess at how this weird creature evolved.研究者们只能猜测这个奇怪的生物是如何进化的。
to guess at what猜测什么…
I have to guess at what he's feeling, he never tells me.我不得不猜测他的感受, 他从不告诉我。
You can only guess at what mental suffering they endure.你只能猜测他们忍受着什么样的精神折磨。