在过去的五十年里，老虎的数目锐减。
The number of tigers has reduced abruptly in the last fifty years.
在过去的五十年里，老虎的数目锐减。
The number of tigers has reduced abrupt ly in the last fifty years.
在过去的五十年中，产生了许多关于如何这样做的理论。
In the last fifty years, there have been a lot of theories generated about how to do this.
在过去的五十年间，河畔附近在一个小的地震空白区。
There was a small seismicity gap around kawazu for the past 50 years .
在过去的五十年里，我们看到人们在社交技巧和社交实践方面的退步。
In the last fifty years we have seen an erosion of social skills and practices.
她告诉我们，在过去的五十年里，我们小镇上的两间教会是如何倍增到六间的。
She told us how two churches in our town had multiplied into six over the past fifty years.
在过去的五十年里，在研究中已经取得了很大的进步，从这些发现置入新的治疗方案出现了。
Over the past fifty years, great strides have been made in the study of osseointegration, and from these findings new therapeutic options have emerged.
在过去的五十年里，人们估计地球的人口承受能力从少于十亿到多于一万亿，但不可能所有人的估计都正确。
In the last half century, people have estimated human carrying capacities for the earth that have ranged from less than one billion to more than a trillion. They can't all be right.
在过去的五十年里——只比百万分之一地球年龄的百分之一多一点——大气中的二氧化碳浓度开始反常地迅速上升。
Within the last 50 years - little more than one hundredth of a millionth of the Earth's age - the carbon dioxide in the atmosphere began to rise anomalously fast.
在过去五十年里，编程基本上是一种单干的职业。
Programming has been essentially a solitary profession for the last five decades.
自信心是一个方面，因为在越南人看来，他们在过去五十年中摆脱了世界三大强国（美国、中国和法国）的束缚。
One factor is the self-confidence that comes from having, as they see it, beaten off three world powers (America, China and France) in the past half-century.
我们现在所看到的，也才是一个开端而已，肉品消耗量在过去五十年已增加五倍，而未来五十年恐怕会再加倍。
What we're seeing is just the beginning, too. Meat consumption has increased five-fold in the past fifty years, and is expected to double again in the next fifty.
报告说，在过去五十年里，美国的平均气温已经上升了1.5华氏度(0.8摄氏度)。
Average temperatures in the US have risen by 1.5f (0.8c) over the last 50 years, the report said.
在过去五十年里，一条线贯穿着你生产的所有织品。
One thread interlaces the fabrics that you have produced for last fifty years.
但没有什么更多的天真，比假设无休止的石油，现代社会的成长耽溺在过去五十年将持续永远。
But nothing is more nave than assuming that the endless oil that modern societies grew addicted to over the past fifty years will last forever.
本周比尔·盖茨表示，人类在过去五十年里的最大成就是儿童死亡人数的减少，2007年儿童死亡人数是一千万，比五十年前减少了一半。
HUMANITY's greatest accomplishment of the past five decades, declared Bill Gates this week, is the reduction in the number of deaths among young children by half, to 10m a year in 2007.
在这些方面上，某些规则比如穿衣的规则，和使用刀叉的具体的方式，在过去五十年里没有改变过，而且很有可能在下个世纪也不会改变。
In such aspects, certain rules such as dressing codes as well as exact method of using forks and knives didn't change in the last 50 years and probably will not change in the next century.
在过去五十年中，美国担负了亚太地区的稳定。
Over the last half century, the United States has underwritten stability in the Asia Pacific.
对自然资源的需求在过去五十年增加了一倍。
The demands on natural resources have doubled in the past 50 years.
问题是，在过去的十五年薄膜的方式分布在过去15年有很大的不同是以前的东西了五十年前。
The problem was, in the last fifteen years the way films were distributed in the last fifteen years was very different from what it used to fifty years before that.
问题是，在过去的十五年薄膜的方式分布在过去15年有很大的不同是以前的东西了五十年前。
The problem was, in the last fifteen years the way films were distributed in the last fifteen years was very different from what it used to fifty years before that.
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