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1·We are very proud of what our country has achieved in the past fifty years.

我们为我们国家五十年来取得的成就感到自豪。

2·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.

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。

3·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，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。

4·Over the past fifty years, America has led the world in space exploration, broadening humanity's horizons and our understanding of the universe.

过去五十年来，美国在太空探测、扩大人类视野和对宇宙的了解方面居于世界领先地位。

5·It is well known that sediment research in China has got a great achievements since the past fifty years.

我国的泥沙研究取得了巨大成就，是少数几个保持国际领先水平的学科之一。

6·She told us how two churches in our town had multiplied into six over the past fifty years.

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。

7·Scientific groups in Sweden choose the winners from among those nominated by past winners and specially chosen university professors The names of those nominated are not made public for fifty years.

由以往获奖者和精选的大学教授专家组成的科学组从那些候选人中选出获奖者。那些被提名的姓名有五十多年没公开了。仅供参考，比较差，别见怪。