它并不是由于某种原因而在过去几百年里减少的庞大人口的残余。
It's not a remnant of some huge population that is dwindled in the last few hundred years for some reason.
如果用图表进行展示的话，这些变化呈现出来的曲线很像大家熟悉的曲棍球杆：以往数千年都没什么变化，而在过去的几十年内却突飞猛涨。
If represented graphically, the curve for all these changes looks rather like that well-known hockey stick: with little change over millennia and a dramatic upswing over the past decades.
然而在过去的五年里，多亏一档电视真人秀节目，交际舞的人气一路飙升。
For the past five years though, the popularity of ballroom dancing has soared thanks to a reality TV show.
一个更激进的解决方案是在航站楼内寻找新的商业收入来源，而在过去十年左右的时间里，许多机场都在这一方面进行了探索。
A more radical solution is to find new sources of commercial revenue within the terminal, and this has been explored by many airports over the last decade or so.
而在过去的一年里其失业率几近番倍。
不，然而在过去的两个月里我竭尽全力。
而在过去的十年里，每年的增幅是3%。
That compares with an average growth of 3 percent a year over the last decade.
而在过去30多年中，英语敬词选择余地进一步缩小。
And over the past 30 years, the narrow options in English have shrunk further.
然而在过去的这么许多年里，邻近的机场却扩大了一倍。
In the intervening years, however, the airport next door has doubled in size.
然而在过去几十年里，一系列研究质疑了这一个老观点。
Over the past few decades, however, a series of studies has called these stereotypes into question.
而在过去12年，壳牌公司已经将其炼油产能缩减了40%。
And Shell has trimmed its refining capacity by 40% over the last 12 years.
而在过去几年中，货币——尤其在美国——实在廉价得过分了。
And money, particularly in America, was extremely cheap in the past few years.
然而在过去的几年中，她的自信心和自尊心都得到了很好的成长。
But with each passing year, she grew in confidence and self-esteem.
然而在过去20年中，很多计算机芯片生产商在那里开设了工厂。
In the past twenty years, however, many computer-chip manufacturers have opened factories there.
然而在过去五年内，崛起的亚洲对能源的需求占到了世界的三分之二。
But emerging Asia accounted for two-thirds of the increase in world energy demand over the past five years.
然而在过去几年，敬业的英国极客们发现了牡蛎卡的一些非主流应用。
Nevertheless, enterprising British geeks have been exploring less serious applications for the Oyster Card over the past few years.
仅仅在今年一月就上涨了22%——而在过去两年里已经上涨了133%。
It increased by 22% in January alone-and has risen by 133% over the past two years.
然而在过去两年间，市民对于铝和纸张的循环再生的数量比以前翻了一番。
During the past two years, however, town residents have been recycling twice as much aluminum and paper as they did in previous years.
然而在过去的一年里，她并没有惊人之作，只是出演了一系列配角和小品。
But she has not been lighting up cinemas in the last 12 months, taking a series of supporting roles and cameo performances.
而在过去一年的“痛定思痛”中，欧洲大陆的领导人们提出了形形色色的主张。
Yet during the past year's "pause for reflection", plenty of ideas have been put forward by the continent's leaders.
日本在20世纪90年代中期经历过短暂的通货紧缩时期，而在过去十年物价较为稳定。
Japan had a brief period of deflation in the mid-1990s, followed by a more consistent pattern of flattish prices over the past decade.
目前这一代金属对金属介面人工髋关节推出的时间尚短，而在过去的十年中得到广泛普及。
The current generation of metal-on-metal devices is still relatively new, having been used increasingly over the last decade.
通货紧缩已经消失，而且在7月日本银行提高了利率。而在过去五年日本的利率一直停留在零。
Deflation has gone away, and in July the BoJ raised interest rates, which had been stuck at zero for five years.
过去的一年里，发现了六个新霸王龙物种。而在过去的十年里所知道的霸王龙种类是之前的两倍多。
But in the past year half a dozen new tyrannosaur species have been described, and during the past decade the known diversity of tyrannosaurs has more than doubled.
假如我在最近几年出生，我会被诊断为‘属于孤独症谱系’，而在过去，我被认为是‘问题儿童’。
If I were born more recently, my condition would probably have been diagnosed as being "on the autistic spectrum", but then I was a "problem child".
然而在过去的十年，他们不仅接受了动物实验的合理性也认可了试验中基因改良老鼠使用量的增加。
Yet over the past decade they have come to accept not only that animal experimentation can often be justified but also the increased use of genetically modified mice in carrying out such tests.
而在过去一个星期，经过一段空头轧平、让一些投资者削减空头头寸之后，欧元确实出现了一定的稳定。
And in the past week, following a short squeeze that led some investors to trim positions, the euro has found some stability.
而在过去一个星期，经过一段空头轧平、让一些投资者削减空头头寸之后，欧元确实出现了一定的稳定。
And in the past week, following a short squeeze that led some investors to trim positions, the euro has found some stability.
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