对于最小的儿子一般所知甚少，据推测他已经夭亡。

Little is known of the youngest son; it is presumed that he died young.

《牛津词典》

据推测，所有行星都是由尘埃和气体组成的原始云团凝聚而成，其组成与木星的组成有些相似。

It is hypothesized that the primordial cloud of dust and gas from which all the planets are thought to have condensed had a composition somewhat similar to that of Jupiter.

youdao

据推测，这些环境灾难可能是物种大规模灭绝的成因，包括恐龙的灭绝。

Presumably, those environmental disasters could have been responsible for the mass extinction, including the death of the dinosaurs.

youdao

He must have had, it is conjectured, a rather ladylike appearance as a young man.

据推测，作为一个年轻男人他一定有一个很女性化的面孔。

耶鲁公开课 - 弥尔顿课程节选

We add up the goods, subtract the bads-- whatever our favorite list is-- and we come to our best educated guess about the rival evaluations of not just lives as a whole, but chunks of lives.

我们把好事加起来减去坏事-,不管我们最喜欢哪些事-,我们不但可以据理推测,一生期间其他生活的价值，还能推测某段时间其他生活的价值。

耶鲁公开课 - 死亡课程节选