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。

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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。

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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。

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They have been among the most eager Euro-enthusiasts, with most political observers reckoning them happy to go along with giving Brussels more say in Italy's affairs on the basis that it was likely to improve on anything offered by their own notoriously unstable governments in the past fifty years.

CNN: Berlusconi appointed himself as the new foreign minister

Now in fairness to President Obama, almost every president for the past fifty years has fallen in the polls after the first half of his term.

FORBES: Obama and the High Cost of High Expectations

According to the Potato Processors'Association, sales of French fries have fallen over the past year by 10 percent, the largest single drop in the last fifty years.

NPR: Rabid Reader: 'Fat Land' and U.S. Supersizing