这一警报是由北极地区史无前例的事件所引发的。
纽约市的大型快餐连锁店已经开始遵守史无前例的规定，也就是在菜单上标明卡路里计数。
Big fast-food chains in New York City have started to obey a first of its kind rule, requiring them to post calorie counts right on the menu.
纽约市的大型快餐连锁店迎来了一项史无前例的新规定，这一规定要求他们在菜单上附上卡路里含量表。
Big fast-food chains in New York City have started to obey a first-of-its-kind rule, requiring them to post calorie counts right on the menu.
这一社会实践的范围是史无前例的。
这将是史无前例的壮举。
人类同样以史无前例的方式来面对这一疾病。
And humanity has faced this disease, in equally unprecedented ways.
世界已经史无前例的成为一个整体。
但对于代表们，否决一项法案将是史无前例的。
But it would be unprecedented for delegates to reject a bill.
印度财政历史上，史无前例的重要举措。
single most important initiative in the fiscal history of India
旧房销售量的骤降是严重的但是并不是史无前例的。
The plunge in sales of existing homes is severe but not unprecedented.
达文认为，各州的行动规模之大，都是史无前例的。
Ms Dalven thinks that the scale of the states' actions is unprecedented.
但是水量的需求，尤其在这样一个沙漠，是史无前例的。
But the amount of water required, especially in a desert, is unprecedented.
贪婪也是人们以史无前例的速率耗费自然资源的原因所在。
Greed is also the reason why people are depleting natural resources at an unprecedented rate.
这是一次为应对前所未有的威胁而举行的史无前例的会议。
This is an unprecedented gathering to address an unprecedented threat.
重建这些急需的基础设施的实际任务是一个史无前例的挑战。
The actual task of building back this critical infrastructure is a challenge of unprecedented proportions.
首先，很多大学毕业生的负债额是显著的而且是史无前例的。
First, the amount of indebtedness many graduates have is pronounced and unprecedented.
然而，过去几年来教育领域取得的史无前例的成果正遭受威胁。
However, the unprecedented gains in education of the past years are now under threat.
“过去五到六年间我们见证的是史无前例的财富转移，”他说。
"What we have witnessed over the past five to six years has been nothing short of a historically unprecedented transfer of wealth," he said.
所以，一个史无前例的决定出来了——修复飞机，让它重新起飞。
So an unprecedented decision has been made - to restore the plane and make it fly again.
所以，一个史无前例的决定出来了——修复飞机，让它重新起飞。
So, an unprecedented decision has been made - to restore the plane and make it fly again.
至少，保尔森史无前例的行为解除了一个一直可能随时爆炸的危机。
At the very least, Paulson's unprecedented move defuses one ticking time bomb.
严重急性呼吸道综合征和禽流感等新疾病正在以史无前例的速度出现。
New diseases, like SARS, like avian influenza, are emerging at an historically unprecedented rate.
我们还向抗击艾滋病、结核病和疟疾全球基金作出了史无前例的数年认捐。
We have also made an unprecedented multi-year pledge to the Global Fund to Fight AIDS, Tuberculosis and Malaria.
2007年，史无前例的野火肆虐希腊全国，几乎摧毁了古奥林匹亚遗址。
In 2007, unprecedented wildfires raged across Greece, nearly destroying the ancient site of Olympia.
越南通过实弹演习和发布军事条令做出了史无前例的尖锐反应，他补充道。
Vietnam had reacted with unprecedented stridency by holding the live-fire drill and issuing a decree on the terms of military service, he added.
然后，这些企业回到自己的研发团队，打造出新产品和史无前例的价格水平。
Then the companies are going back to their research teams and crafting new products and unprecedented price points.
然后，这些企业回到自己的研发团队，打造出新产品和史无前例的价格水平。
Then the companies are going back to their research teams and crafting new products and unprecedented price points.
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