One difficulty: Monkeys live almost 30 years on average, meaning any study to measure a difference in death rates would need to wait a long time.

但此类研究面临着一个困难：猴子平均可以活将近30年，这意味着任何衡量寿命差别的研究都需要等待很长时间。

youdao

As long as two people live in each other's heart is not separated from death.

只要两人住进对方心里死亡也不算分离。

youdao

An ingenious but slightly ominous' laser death test 'has been developed by scientists that can tell you how long you have left to live.

这是一个了不起的发明，但对很多人来说却也很避讳——测试你什么时候去世。是的，科学家发明了激光测试死亡日期的方法，可以算出你能活多久。

youdao

It is a case that will live in the public's memory long after the death of Harold Shipman.

BBC: NEWS | UK | Shipman taking control of his own death

But excited researchers say that apo E is rapidly emerging as the first-found of a set of mysterious genes that roughly determine how long a person will live, provided he or she escapes an "unnatural" death from bacteria and viruses, war, accidents, unhealthy diet, smoking or other environmental happenstance.

WSJ: A Gene Gives a Hint Of How Long a Person Might Hope to Live