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

对于最小的儿子一般所知甚少，据推测他已经夭亡。

《牛津词典》

He died young, must have been because his life was so busy.

他英年早逝一定是因为他生活节奏太快了。

youdao

The reason why he died young was his inattention to health.

他英年早逝的原因是他不注意自己的健康。

youdao

He died at the young age of forty in nineteen sixteen.

VOA: special.2010.05.21

I think he died too young-- that's one of the misfortunes of living.

我记得他青年早逝-,这是我们一大损失。

耶鲁公开课 - 金融市场课程节选

"I was running away and they started shooting and a bullet hit the chest of a young man of maybe 18,19.He died."

VOA: standard.2010.07.01

Had he died young, he would indeed have been remembered as a Byron or a Shelley.

ECONOMIST: British poets

They had him thrown in a madhouse, where he died young.

FORBES: Hospitals' Nightmare

And like Jeff, he also died young - only to be rediscovered after he was long gone.

NPR: Buckley's Big Voice Built a Loyal Following