The ceremony was disrupted by unprecedented heckling and slogan-chanting.
典礼因前所未有的起哄和口号声而中断。
The president took the unprecedented step of summoning all the state governors to a conference on education.
总统采取了前所未有的举措，召集所有的州长参加一次教育讨论会。
It is faced with many unprecedented challenges.
它面临着许多前所未有的挑战。
The alarm is caused by unprecedented events in the Arctic.
这一警报是由北极地区史无前例的事件所引发的。
It posed an unprecedented threat to the wildlife around Antarctica.
它对南极洲周围的野生动物构成了前所未有的威胁。
After the fragments' entry, these analyses revealed unprecedented traces of sulfur.
在碎片进入之后，这些分析揭示了前所未有的硫磺痕迹。
Stirrups unify lance, rkier, and horse into a force capable of unprecedented violence.
马镫将骑枪、长矛和马团结在一起，形成一股具有空前暴力能力的力量。
From 1641 to 1643, there had been an unprecedented explosion of printing and publishing in England.
从1641年到1643年，英格兰出现了空前的印刷出版狂潮。
This means an unprecedented number of people are surviving longer in conditions requiring expert support.
这意味着，在需要专家支持的情况下，存活时间更长的人数达到了前所未有的水平。
To accommodate this unprecedented situation, the House of Windsor created a special title for him: the Duke of Windsor.
为了解决这一前所未有的情况，温莎王朝给了他一个特别的爵位：温莎公爵。
The unprecedented flooding in Pakistan disrupted the lives of 20 million people, but it also affected the country's arachnid population.
巴基斯坦史无前例的洪水夺去了两千万人的生命，也影响了这个国家蜘蛛的数量。
Recent years have brought minority-owned businesses in the United States unprecedented opportunities—as well as new and significant risks.
近年来美国的少数民族企业遇到了前所未有的机遇，同时也给他们带来了新的重大风险。
According to Kerber, motherhood became pivotal to the fate of the republic, providing justification for an unprecedented attention to female education.
根据Kerber的说法，母性成为了共和国命运的关键，这为前所未有的女性教育关注提供了辩护。
The unprecedented land clearance released vast quantities of carbon dioxide into the atmosphere, triggering for the first time humanly caused global warming.
空地的规模史无前例，它们将大量的二氧化碳气体释放到了大气中，因而引发了第一次人为导致的全球变暖。
Unprecedented industrial growth in the country of Remo has created serious environmental problems because factories there lack adequate pollution-control systems.
由于工厂缺乏适当的污染控制系统，Remo乡村地区的史无前例的工业增长造成了严重的环境问题。
That shift, in turn, place an unprecedented premium on "knowledge workers", a new class of wealthy, educated, and mobile people who view themselves as free agents in a seller's market.
反过来，这种转变又给“知识工人”带来了前所未有的好处，这是一个新的阶层，由富有、受过教育、流动性强的人组成，他们认为自己是卖方市场上的自由代理人。
During the middle of the 19th century, Germany, along with other European nations, experienced an unprecedented rash of workplace deaths and accidents as a result of growing industrialization.
在19世纪中叶，由于工业化的发展，德国和其他欧洲国家经历了前所未有的大量因工死亡和因工事故。
Writing for the National Immigration Forum, Gregory Rodriguez reports that today's immigration is neither at unprecedented levels nor resistant to assimilation.
格雷戈里·罗德里格斯在为国家移民论坛撰写的文章中报告说，当今移民既没有达到前所未有的水平，也不抵制同化。
These declines are unprecedented.
衰退是前所未有的。
His actions were unprecedented.
他的这一行动史无空前。
The disintegration is unprecedented.
这是一种空前的溃乱。
This law appears to be unprecedented.
这条法律似乎是前所未有的。
It will be an unprecedented occurrence.
这将是史无前例的壮举。
They have some unprecedented dimensions.
危机涉及一些前所未有的方面。
Its agreed secession would not be unprecedented.
这种双方同意的分离并非史无前例。
America's economy is facing unprecedented challenges.
美国经济正面临着前所未有的挑战。
But the speed and scale pose unprecedented challenges.
但无论是速度还是规模都是空前的挑战。
But at times Obama's use of "unprecedented" is questionable.
但是有时候奥巴马对“空前”的使用就值得推敲。
Iranians are also distressed by unprecedented oil rationing.
伊朗人对空前的石油配给感到难过。
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