Now a third and far more significant motivation presents itself: meeting these goals may be necessary to prevent the collapse of our civilization.
现在，第三个也是更重要的动机出现了：为了防止我们文明的崩溃，这些目标可能是必须要实现的。
After the failure of Lehman Brothers, many of the world's largest banks feared the worst as the collapse of the housing bubble exposed investments in risky loans.
在雷曼兄弟破产后，许多全球最大的银行都曾担心出现最糟糕的情况，因为房地产泡沫的破裂暴露了它们在高风险贷款方面的投资。
Correspondents in the city say the raids, one of them in daylight, caused the collapse of sections of the walls around the Bab al-Azizia military complex.
在该市的记者说，其中一次袭击发生在白天，导致阿齐齐亚军事基地周围的部分墙壁倒塌。
The disease pushed him to work harder but also led to the collapse of his two marriages.
这场疾病促使他更加努力工作，但也导致他两次婚姻失败。
然而崩溃从没发生。
The first is the collapse of loyalty.
首先是忠诚意识的崩溃。
The second reason is the collapse of technical processes.
第二个原因是技术过程的失灵。
Another issue emerged from the collapse of Lehman Brothers.
当雷曼兄弟破产之后另一个问题产生了。
Exports have been tumbling along with the collapse in world trade.
国际贸易崩溃连累了出口。
But they did not predict the collapse of the US mortgage market.
但是他们没有预料到美国次贷级市场的崩溃。
NO COUNTRY or company has been immune from the collapse in car sales.
没有任何一个国家或者公司能够幸免于汽车销量的大幅下降。
It is not clear how many survived the collapse of the three-storey building.
倒塌的三层楼下还有多少幸存者目前还不得而知。
The annual reports began in 2001, after the collapse of the Internet bubble.
年度报告从2001年互联网泡沫崩溃之后开始的。
It's also good news if prices fall due to the collapse of a speculative bubble.
即使价格下降是由于投机泡沫的破灭造成的，也仍然是个好消息。
The decline of marriage is also contributing to the collapse in the birth rate.
结婚率下降也是人口出生率下降的原因之一。
Yet the collapse of the Soviet Union has made available a trove of new material.
然而，苏联解体让一批被收藏起来的新材料面世。
It's now been nearly two years since the collapse of the real-estate bubble began.
从美国房地产泡沫破裂开始，至今已有将近两年了。
Predictions of the collapse of the tropical rain forests have been around for years.
有关热带雨林毁灭的预测已经有好多年了。
A year later, following the collapse of Lehman Brothers, the markets made a U-turn.
一年之后，紧接着雷曼兄弟破产，市场急速转变。
But would a structural engineer reason away the collapse of a building in a similar way?
但是建筑工程师会用类似的方式来解释一个建筑物倒塌的原因吗？
STEVE HILTON remembers months of despair after the collapse of Lehman Brothers in 2008.
SteveHilton仍旧记得2008年雷曼兄弟破产之后长达几个月的绝望感。
Yet that era, which began with the collapse of the Soviet Union, ended suddenly last year.
然而，那个始于苏联崩溃后的时代，去年突然结束了。
In fact, the collapse of cooking in a society tracks very closely its rise in obesity.
实际上，一个社会烹饪的缩水与肥胖症的上升密切相关。
Land access has been cut off by the collapse of a bridge and the blocking of a back road.
道路交通已经中断，因为有一座桥梁垮塌，另有一条小路也被堵住。
Following the collapse of the Soviet Union in 1991, Russia took over the operation of Mir.
1991年苏联解体，俄罗斯接管了和平号空间站的工作。
"We witnessed the collapse of the financial system," Soros said at a Columbia University dinner.
“我们亲眼见到金融体系的崩溃，”索罗斯在哥伦比亚大学的晚宴上说。
Astronomers will tell you that they are born in the collapse of primordial clouds of gas and dust.
天文学家们会告诉你，它们诞生于原始的由气体和尘埃组成的云团的崩溃。
One bubble, it seems, could help plug the balance sheet hole created by the collapse of another.
这个泡沫似乎有助于填补因另一个泡沫破裂所造成的资产负债表上的窟窿。
"We fear the collapse of the galleries above all else," says Latif, one of the mine's engineers.
“我们整天担心这些支架会崩塌，”矿井工程师拉提夫说。
"We fear the collapse of the galleries above all else," says Latif, one of the mine's engineers.
“我们整天担心这些支架会崩塌，”矿井工程师拉提夫说。
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