The death of a single human is a tragedy, one that survivors sometimes never recover from, and we prize the individual life above all.

每个人类个体的死亡都是一个悲剧，逝者已矣，生者有时却永难释怀；而且，我们认为人的生命高于一切。

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In another surprise, a U. S. team tracked individual proteins and found that a single random molecular event can switch a bacterial cell from one metabolic state to another.

另一个意外是，美国研究组跟踪许多单个蛋白质，并发现一个随机分子事件可以将细菌细胞从一个代谢状态切换到另一个状态。

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Since then, aside from one Austrian bodybuilder, the Republican Party has not elected a single individual to any state-wide office or held a majority in either house of the legislature.

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