without precedent in history

基本解释

It is without precedent in history.
这是史无前例的。
Great, his distinguished performance is really without precedent in history.
好棒！他的杰出表现的确是史无前例。
With the national emphasis of urbanization, urbanization research is without precedent in history in China.
随着国家对城市化的重视，国内城市化研究盛况空前。

For academics, foreign policy experts and decision makers, Latin America is currently offering a model without precedent in history.
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The story of Asia over the last few decades is the story of change that is so rapid and transformative that it may be without precedent in human history.
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Although the report was denied by the Obama administration, if it was true, such a move by the White House would be without precedent in the history of US relations with Israel.
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