Much of this illness and death could be prevented using knowledge that has existed for many years.
利用已多年存在的知识，就可预防这种疾病和死亡的多数。
With the hundreds of possible planes that could be used in the military setting, this rapid identification was literally the tool that made a life and death difference.
数以百计的可能与飞机可用于军事上这种飞速识别工具使生命与死亡之间的差别。
The concern is that this therapy could be a disguised form of euthanasia because death often comes fairly rapidly after sedation, the researchers comment.
研究者们称，引人关注的是这种疗法可能是安乐死的一种伪装方式，因为给予镇静之后患者通常会很快死亡。
It would be helpful if we could rear our children with the awareness of death and of their own finiteness. Even in a death-denying society, this can be and has been done.
如果我们能培养孩子们意识到死亡之存在，生命之有限，这将很有意义的。甚至在这个对死亡视而不见的社会里，这一点也能够并且已经做到了。
Nicknamed "Nemesis" or "the Death star," this undetected object could be a red or brown dwarf star, or an even darker presence several times the mass of Jupiter.
绰号“复仇者”或者“死亡之星”的未被发现的天体可能是一颗红矮星或者褐矮星，甚至是更暗的物质，质量几倍于木星。
Nicknamed "Nemesis" or "the Death star," this undetected object could be a red or brown dwarf star, or an even darker presence several times the mass of Jupiter.
绰号“复仇者”或者“死亡之星”的未被发现的天体可能是一颗红矮星或者褐矮星，甚至是更暗的物质，质量几倍于木星。
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