And by the time he discovers that the morsel is not of the genus stone, but a digestible bonbon, half his allotted span of life is over.

等到他发现这口食物不是一块石头，而是可以消化的糖果时，他的大半生已过去了。

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The batteries had a life span of six hours.

电池的使用寿命是6小时。

《柯林斯英汉双解大词典》

The expected life-span of Beijing residents has gone up to 75.

北京居民的预期寿命已经达到75岁。

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God saw that he had to limit the life span of humans, or risk creating an enemy that was nearly equal to him.

上帝发现他限制了人类的寿命，否则就是冒险创造了与他平等的死敌。

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So one of the reasons there is a huge increase in life span is because people aren't dying of things that they would have in prior years.

寿命范围显著增长的一个原因是,人们不再死于,以前那些致死的东西

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Span of life is the scarcity that will govern human interactions and consumer businesses.

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We no longer have to confine the life span of the LED to the life span of the converter.

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But bacteria and viruses breed fast, so natural selection has time, within the span of a human life, to make a difference.

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