One thing is for sure, if or when the U.K. leaves the EU, it will erect new logistical and economic barriers, and no one knows how divisive they will be.

有一件事是肯定的，如果或当英国离开欧盟时，英国将会建立新的物流和经济障碍，没有人知道这些障碍会造成多大的分歧。

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No one knows which—if any—battery technology will ultimately dominate, but one thing remains clear.

没有人知道哪一种电池技术（如果有的话）最终将占据主导地位，但有一件事是清楚的。

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No one knows if Spot will stay after the pandemic is gone, but one thing is for sure: the robot is the hardest working dog in the world.

没人知道疫情结束后斯伯特会不会留下，但有一件事是肯定的：这个机器人是世界上最勤奋的工作者。

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No one knows why. Roanoke is a low, narrow island between the mainland and the islands of the Outer Banks.

VOA: special.2009.08.17

It has to stay relevant to the market, so nobody really knows where these interest rates come from because no one person sets them.

交易价格必须与市场价格一致,因此没有人能确定,利率的决定过程,因为个人无法决定利率

耶鲁公开课 - 金融市场课程节选

And he says, I don't, "No one really knows where the Nile River starts."

他说，“我不，没人真的知道尼罗河的源头到底在哪里。”

神话有趣的课 - SpeakingMax英语口语达人

This is such a contradiction which no one wants, no one knows how to solve.

NPR: Turkey Threatens Economic Sanctions on Kurds

One thing no one knows yet though is who will be China's first man in space.

BBC: NEWS | Science/Nature | China space mission 'on track'

One is that no one knows how many and which food products have them.

CNN: Study the use of nanoparticles in food