But this is the most historic change we've been through.

但这是最具历史意义的变革。

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Now another historic change is shaking up the global hierarchy.

现在另一个历史性的转变正在震撼着全球等级秩序。

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This historic change has led to changes in the Chinese family structure.

这具有历史意义的变化使中国家庭的结构也改变了。

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"My friends,I ask you to join in this historic journey to have the courage to choose change.

VOA: special.2009.09.13

"My friends,I ask you to join in this historic journey to have the courage to choose change,".

VOA: standard.2009.08.26

You see, America must remain a beacon to all who seek freedom during this period of historic change.

BBC: State of the Union: Obama pledges to reignite economy

Above all, America must remain a beacon to all who seek freedom during this period of historic change.

FORBES: Full Text: President Obama's 2013 State Of The Union Address

There was an historic change in the U. S. House of Representatives.

FORBES: The Day the Recovery Started