3个月来在医生们奋力挽救她的生命的过程中，她一直处在死亡的边缘。
She hovered on the brink of death for three months as doctors battled to save her.
这些实验中所用的猴子事先都已接种了由死亡的被感染细胞制成的疫苗。
The monkeys used in those experiments had previously been immunized with a vaccine made from killed infected cells.
很长一段时间以来，一直有关于文化文明即将死亡的警告。
There's been a warning about the imminent death of literate civilization for a long time.
那似乎可能是定义死亡的最自然的方式，但它并不是一个可以接受的方法。
That may seem to be the most natural way to define death, but it's not an acceptable approach.
煤烟污染会刺激肺部，使哮喘等病情恶化，增加心脏病发作和过早死亡的风险。
Soot pollution can irritate the lungs, worsen conditions like asthma and increase the risks of heart attacks and premature death.
2000年，造成百岁老人死亡的五大原因是心脏病、中风、流感、癌症和老年痴呆症。
In 2000, the top five causes of death for centenarians were heart disease, stroke, flu, cancer and Alzheimer's disease.
早在2013年，开车时发短信就已上榜成为导致美国年轻人因交通事故死亡的主要原因。
Texting while driving was listed as a major cause of road deaths among young Americans back in 2013.
饥饿、干渴和对死亡的恐惧总是像幽灵一样围绕着他。
Hunger, thirst and fear of death were always around him like ghosts.
烟雾报警器可以降低在房屋火灾中死亡的风险。
A smoke alarm makes the risk of dying in a house fire smaller.
例如，最具破坏性的脑损伤是某人被认为脑死亡的情况。
The most devastating form of brain damage, for example, is a condition in which someone is understood to be brain dead.
即使石油泄漏不是海豚死亡的直接原因，它仍可能是一个因素。
Even if the oil spill was not the direct cause of dolphins' death, it still could be a factor.
你可以喝酒、抽烟、超重，但还是可以通过跑步来降低过早死亡的风险。
You may drink, smoke, be overweight, and still reduce your risk of dying early by running.
石化还可能同时涉及将死亡的动植物的原有物质与不同成分的矿物质进行交换的作用。
Petrifaction may also involve a simultaneous exchange of the original substance of a dead plant or animal with mineral matter of a different composition.
之前的很多研究已经发现，越乐观的人得慢性病的风险越低，过早死亡的风险也越低。
Previous studies have found that more optimistic people have a lower risk of developing chronic diseases, and a lower risk of premature death.
中国青少年研究中心的一项调查显示，学校事故是导致小学生和中学生死亡的最大原因。
A survey done by the China Youth and Children Research Center showed that school accidents kill more elementary and middle school students than anything else.
有这样一个著名的故事，特蕾莎修女在加尔各答将一个濒临死亡的男人拖着抱出了排水沟。
There is this famous story of Mother Teresa holding and hugging a dying man in Calcutta rescued from a gutter.
他说：“导致人们过早死亡的一个风险因素就是我们吸入的空气，而这是个人几乎无法控制的。”
"One of the risk factors for premature deaths is the air we breathe, over which individuals have little control," he said.
如果第二年有足够的雨水形成另一个湖泊，卵就会孵化，小虾会再次快速地经历生长、成年、产卵和死亡的循环。
If sufficient rain falls the next year to form another lake, the eggs hatch, and once again the shrimps pass rapidly through their cycle of growth, adulthood, egg-laying, and death.
多年来，母亲们一直被警告说，与她们的新生儿睡在一起是一个坏主意，因为这会增加婴儿夜间意外死亡的风险。
Mothers have been warned for years that sleeping with their newborn infant is a bad idea, because it increases the risk that the baby might die unexpectedly during the night.
同时，由于自然选择更倾向于选择那些能够感染宿主但不致其死亡的病毒，这种致命病毒便随着宿主的死亡而消失。
Meanwhile, the deadliest strains of the virus perished with their hosts as natural selection favored strains that could infect hosts but not kill them.
我们之前提到了世界各地热带地区中珊瑚礁的衰落，即自然和人为（造成的）压力是怎样造成珊瑚礁退化，或者甚至在某些情况下，造成它们死亡的。
We've been talking about the decline of coral reefs in tropical areas all over the world—how natural and man-made stresses are causing them to degrade or in some cases, to die.
濒临死亡的肝细胞正形成嗜酸性小体。
A dying hepatocyte is forming an eosinophilic "councilman body".
造成这些死亡的主要原因之一是贫穷。
这很快地引起大家疑问他死亡的情形。
This soon raised questions about the circumstances of his death.
它揭示了许多虎鲸生活和死亡的奥秘。
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