A UN official said he thought it was an open question whether sanctions would do any good.

一位联合国官员表示，他认为对于制裁是否能够起到作用这个问题，尚无定论。

《柯林斯英汉双解大词典》

I don't believe that markets are efficient, and it doesn't really seem like it should be an open question.

我不相信市场是有效的，这似乎也不是一个开放式的问题。

youdao

That's still an open question.

这仍然是个未解决的问题。

youdao

I don't believe that markets are efficient and it doesn't really seem like it should be an open question.

我不相信市场是有效的,而且事实上这似乎,也不应该是一个开放式的问题。

耶鲁公开课 - 金融市场课程节选

So here's my attempt to make the question both a bit more precise, and a question that's an open question.

我正尝试,让这两个问题变得更准确,这是个开放性的问题

耶鲁公开课 - 死亡课程节选

It's an open question whether you'll believe it when this class comes to an end, but I'd be surprised if many of you believe it now.

即使到课程结束时,能否接受这个观点,依然是你们的自由,相反,你们要现在就能接受,倒是会让我感到很奇怪

耶鲁公开课 - 心理学导论课程节选

How big a speed bump that will be for each country is an open question.

FORBES: European Economy

How the various security vendors plan to address hypervisor access is still an open question.

FORBES: Repackage or Reimagine? Virtualization and the Potential for a New Security Regime

How the events in Boston could impact the public's view of immigration remains an open question.

WSJ: Boston Attacks Complicate Immigration Debate