Ownership is not clear because of expropriations in the Nazi era.

所有权因纳粹时期的征收而不明。

《柯林斯英汉双解大词典》

That said, one thing is clear: We live in the Anthropocene—an era when everything from the atmosphere to the layers of rock laid down for the future are dominated by human activities.

这就是说，有件事是非常清楚的：我们生活在“人类世”——一个当所有事物，从空气到岩层所奠定的未来，都由人类活动主导的时代。

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The Obama era, it is now clear, began on Election Day and will not wait.

从大选那天开始，奥巴马时代就越来越清晰而不需要翘首以待。

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The implications are clear, the era of the big idea is over.

FORBES: How To Market In A Digital Age

The pattern is clear: in an era of austerity, the federal government has far more resources and legal leeway to provide disaster assistance than do state and local governments.

FORBES: In An Age Of Catastrophes, Federal Disaster Aid Spirals

The story of the modern era is clear: While Europe was inspired by the creative genius of Seve Ballesteros, the U.S. team hasn't been able to harness the individual brilliance of Tiger Woods.

WSJ: It's All Down to Ryder Cup Luck