While there are numerous factors behind these shifts, one factor is surely a growing realization for the young that they are going to live longer.
虽然这些变化背后有许多因素，但可以肯定的是其中一个因素是年轻人越发意识到他们将活得更久。
Some writers cannot produce a word unless they are poised behind a desk, while others prefer to write sitting outdoors or in noisy restaurants.
有些作家只有坐在桌子后面才能写出东西，而另一些作家则喜欢坐在户外或嘈杂的餐馆里写作。
One day while I was hiding behind a wall, looking out toward the fields, I felt a terrible blow to my right eye.
一天，当我躲在一堵墙后朝田野望去时，我感到右眼受到了一记可怕的打击。
Recently, while doing his history homework about World WarII, he had a surprising discovery behind his family's home.
最近，在做关于第二次世界大战的历史作业时，他在自家房子后面有了一个惊人的发现。
The large lizard noticed that whenever the alarm bell rang during the school's practice fire drills, all the children and their teachers ran out of the classroom, leaving the lizard behind, peaceful and quiet for a while.
这只大蜥蜴注意到，每当学校进行消防演习时，只要警铃一响，所有的孩子和老师都跑出教室，把蜥蜴留在教室里，能让它安静一会儿。
He's a snake in the grass. While pretending to be your friend he was slandering you behind your back.
他是个暗敌，表面上装作是你的朋友，背地里却在诽谤你。
You might be trapped behind a screen, but while you were in there you could do anything.
你也许被屏幕后面的一个陷阱陷住了，但是在那里你可以做任何事情。
While this sounds like a radical taunt, the basic logic behind it is reasonable.
虽然这听起来像是一个激进的嘲讽，但它背后的基本逻辑却是合理的。
A twinkling of fairy lights could be seen on the heights behind us, while ahead Christchurch already shimmered with neon.
我们身后的高地上有童话般的光亮闪烁，而前面的基督城已经被霓虹灯照亮。
While the science behind such claims is not definitive, some research does suggest a benefit to low-acid eating.
这种观点背后的科学依据还不是非常充分，但确实有研究提出了低酸饮食的好处。
While we are pacing into the future, we are leaving, at the same time, a lot of things behind.
当我们大步迈向未来时，同时我们也将许多东西留在了身后。
Talk to brides, as I did while researching Wedding Babylon, a look behind the scenes of the happiest day of your life, and the symptoms are obvious.
我在为《婚礼巴比伦》做调查研究时，和很多新娘对话过。
His main point was that the concepts behind agility have been around for a while, and now we're rediscovering them a "even though many people lost their way during the years."
他的主要观点是，隐藏在敏捷后面的许多概念已经存在了一段时间了，现在我们正在重新发现它们——即使许多人在这些年里迷了路。
I was able to close on Kubica but I never had a real chance of passing him, while behind me Fernando got very close on more than one occasion, making the most of a few errors.
我能够接近库比卡，但我一直没有真正的能够超越他的机会，而阿隆索在好几个地方都离我非常近，我犯的为数不多的错误中很多都是在那个时候。
For a while I toyed with the idea that Tommy was behind it somehow, but on those chaotic days all I could do was keep track of myself, never mind watching him.
有一段时间，我怀疑也许是汤米在背后捣了什么鬼。但是一遇到这样忙乱的日子，我所能做的就只有专注于自己手上的活儿，根本没有时间再去盯着他。
For a while, the open source community was left behind because it lacked a similar integrated architecture.
一时之间，开源社区因为缺少类似的集成架构而被远远地抛到了后面。
I want my murderer to know that I am not a coward like he is, hiding behind human shields while condemning thousands of innocents to death.
因为我要让杀害我的凶手知道我不是像他一样的懦夫，躲藏在人群中却使数以千计无辜的人死于非命。
They always negotiate while holding a sword behind their back.
他们总是一边谈判，一边在你背后捅刀子。
He persuaded them to stay behind a pillar while he drove to a store to call the highway patrol.
他劝说他们都躲到柱子后面同时他开车去店铺那呼叫公路巡警。
It is an image worthy of a science fiction film: a rainbow, photographed in the middle of the night, glimmers in the foreground while behind it a brilliant star rises above the horizon.
这是一幅如科幻电影中出现的景象：一道彩虹在前面流光溢彩，而背后是一颗明亮的星星升起在地平线上。
When I met him, he already had a considerable mountaineering career behind him, while I was still a novice.
我见到他的时候，他在登山这行已经是个相当有经验的人了，而我却是个初出茅庐的毛头小子。
After a while, a solitary figure appeared on the path behind her, pausing and stooping occasionally, yet catching up quickly.
过了一会儿，一个孤单的身影出现在她身后的小道上，时而驻足，时而弯腰，可是又总能快速地跟上来。
If it were a race, then United are dragging their owners behind them like a tractor, while City's owners are providing rocket fuel.
如果这是场拉力赛的话，那曼联就像拖拉机，后面还拽着司机，看看曼城吧，人家司机提供的可是火箭燃料。
Men approach with their hands behind their backs while the women use their skirts to keep the men enticed from a respectful distance.
男人们手背在身后往前凑，女人们则利用裙子把男人们挡在礼貌的距离外。
A memory violation can spur SIGSEGV, killing the process instantly while leaving a core dump behind.
内存违例会引发SIGSEGV信号，立即终止进程，并留下一个内核转储。
Enjoy effortlessly masquerading behind a character moustache while drinking your favourite tea or coffee, explore your favourite masculine expression!
在啜饮喜爱的茶或咖啡时，你毫不费力便可伪装成胡须人物，探究你最喜爱的男性表情！
While Haunch of Venison has never officially represented Mr Hirst in London, the gallery has done a strong behind-the-scenes trade in his work.
尽管鹿腿画廊从未出任过赫斯特在伦敦的官方代理，但鹿腿还是为其画作做了大笔幕后交易。
While Haunch of Venison has never officially represented Mr Hirst in London, the gallery has done a strong behind-the-scenes trade in his work.
尽管鹿腿画廊从未出任过赫斯特在伦敦的官方代理，但鹿腿还是为其画作做了大笔幕后交易。
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