The most devastating form of brain damage, for example, is a condition in which someone is understood to be brain dead.

例如，最具破坏性的脑损伤是某人被认为脑死亡的情况。

youdao

It finally hit her that someone was using a time machine, to go back in time, and revive someone who was already dead.

终于，她想明白了，一定是有人利用了什么时间机器回到过去，让什么已经死掉的人复活了。

youdao

But what has made this molecular clock so useful for forensic anthropologists over the past quarter-century is the fact that it stops dead when someone dies.

但为何这个分子时钟在过去四分之一世纪中对于法医学家如此有用呢？究其实是因为某人死去时它突然停止，凝滞了死亡瞬间。

youdao

He was dead. Someone had found his body on the street.

VOA: special.2009.01.17

It's a wonderful clarinet solo by someone named Johnny Dodds long dead of course- but it's one of the most beautiful, incredible clarinet solos you'll ever want to hear.

这是一段由强尼·多兹演奏的单簧管独奏,当然他去世很久了,但这是一段最美妙且无与伦比的,单簧管独奏,你非听不可

耶鲁公开课 - 聆听音乐课程节选

Hivin Kako, a volunteer with the Observatory, says the reporting process is difficult given the situation, but that it has never had a case where it has listed someone as dead who was later found out not to be.

BBC: Profile: Syrian Observatory for Human Rights

Eight reversible causes have to be checked one at a time before someone is pronounced dead.

BBC: NEWS | UK | Magazine | How do you diagnose death?

The mannequin represents someone wounded or dead, and the woman is a Disaster City victim who's been "moulaged" -- made up with mock injuries -- and assigned tasks.

CNN: The brotherhood of Disaster City