Dragonflies and swallows and nighthawks seine the air where the minute winged creatures flit out their minute life spans.

蜻蜓、燕子和夜鹰在天空中像围网似地捕食，而极小的有翼动物在空中轻快地飞来飞去，顷刻间其想暂的生命便结束了。

Number 4. Rottweiler life span is on the shorter end of the scale, partly because of their size and partly because of the health problems this breed is predisposed to.

真相四。罗威纳犬的寿命通常比较短，一部是它们的体型较大，另外这个品种比较容易出现健康方面的问题。

Which of these insects has the shortest life span?

哪种昆虫寿命最短？

Life spans seven orders of magnitude, from invisible bacteria to mites, ants, mice, dogs, humans, elephants and, blue whales.

生命的尺寸横跨七个等级， 从看不见的细菌到尘螨、蚂蚁、老鼠、狗、人类、大象、蓝鲸。

The brighter the star, the shorter its life span.

星星越亮，寿命越短。

Over the last century and a half, the average height of a human being has increased by roughly 10 centimeters and within the last 6 and a half decades the global life span has shot up nearly 20 years largely thanks to science.

在过去的一个半世纪里，人类的均身高增加了大约10厘米。在过去的65年里，全球寿命增长了近20年，这些都主要归功于科学。

Life span and health-span are also not consistent across race and gender, both because of the type of work certain demographics are more likely to take part in, and the toll chronic stress from discrimination takes on the body.

不同种族和性别的人的全部寿命和健康年限也不一致，为不同人口群体倾向于从事的工作不同，也为歧视带来的长期压力对身体造成损害。

And I think the most startling statistic and description of the situation is that, across the life span, at every age — babies, boys, teens, men, middle-aged men, older men — are more likely to die.

我认为最令人吃惊的数、对这一情况的描述是，在整个生命周期中的每个年龄段——婴儿、儿童、青少年、成年人、中年人、老年人——死亡的可能性都要比女性更大。

Among the causes, the soaring energy use of data farms, a dwindling supply of key resources and the short life span of hard drives and the other ways we store data.

数中心的能源使用量飙升，关键资源的供应不断减少，硬盘我们储存数的其它方式的寿命缩短。

It simply means that on average, people who are not in relationships over the course of their life span, are unhappier in many different respects than people who are in relationships.

它只是意味着在一生中，没恋爱过的人许多不同方面大多比谈恋爱的人更不快乐。

A new study has found that genes account for less than 7 percent of a person's life span, much less than the 20–30 percent of most previous estimates.

一项新的研究发现，基在影响一个人的寿命的素中占的比例不到7%，远低于此前大多数估计的20%至30%。

Even if they are left in peace, their life span is only four to five years, and then they will regenerate and begin coloring the rocks bright red again.

即便地不动它们的寿命也只有四到五年然后又会再生重新把岩石染红。

The record was previously held by its predecessor Yutu which worked on the moon for 972 days, far outliving its designed life span of three months.

这一纪录之前由其前身玉兔保持，玉兔在月球上工作了 972 天，远远超过了其设计的三个月寿命。

The life span of a company on the S and P 500 was 61 years in the late '50s; today, it's less than 18.

标准普尔 500 指数（S&P 500） 显示在 50 年代后期，一家公司的寿命为 61 年，而现在寿命低于 18 年。

As the name suggests, a queen's full-time job is laying eggs for the colony, which is why they tend to have longer life spans.

顾名思义，蚁后的全职工作是为蚁群产卵，这就是为什么它们的寿命往往更长。

In addition, horses seem to have a robust long-term memory for human faces, consistent with their long life span and history of domestication.

此外，马对人脸似乎有很强的长久记忆，这记忆贯穿它们长久的寿命和驯养历史。

The average expected life span for a person in this country shrank by over seven months last year, according to the CDC.

根美国疾病控制与预防中心的数，去年美国人的均预期寿命缩短了七个多月。

Now he saw that his life span had always been determined by how long it took to eliminate all the Horcruxes.

现在他终于知道了，他生命的长短始终是由消灭所有魂器需要多少时间而决定的。

That means, of course, that some parts of the world see much shorter life spans, while others enjoy far greater longevity.

显然，这意味着世界上某些地方的人的寿命要短得多，而其他地方的人的寿命则长得多。

This was largely based on insurance industry estimates that his life span was estimated to be a further 13 years.

这主要是基于保险业的估计，即他的寿命估计还有 13 年。