Time flies, twelve years have gone.

时光荏苒，十二年的光阴又过去了。

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For twelve years I divided my time between teaching at Columbia and doing research at the Bureau.

12年时间，我都放在了哥伦比亚大学的教学和研究所里的研究上。

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There was hardly a time during the twelve years Roosevelt lived in the White House when the family was not in turmoil or experiencing some kind of misery or sadness.

罗斯福在白宫居住的十二年间，他的一家几乎没有不出乱子，或者不经受某种痛苦和悲伤的时候。

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"Whilst twelve years seems like a long time ago, the loss felt by the family of their daughter remains, " she said.

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Despite a major roster overhaul last offseason, Florida won the Southeast Division in 2011-12 and qualified for the playoffs for the first time in twelve years.

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Twelve years ago, a very similar situation arose when Ireland played Egypt in Italia '90 at the same time as an Ulster semi-final between Donegal and Derry.

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