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1·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》

2·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。

3·Space travel may soon be a reality, but how visitors get there is still a very open question.

太空旅行可能很快成为现实，但游客如何到达那里仍然是一个开放性问题。

4·That's still an open question.

这仍然是个未解决的问题。

5·It's an open question.

这是个难以回答问题。

6·How they got going so fast is an open question.

他们是怎样达到这么快的速度仍是一个待解决的问题。

7·Where that exploration will lead is an open question.

这种探索的方向是一个未决的问题。

8·It is an open question whether more knowledge is safer.

信息越多是否越安全，这个问题也很难说。

9·There was this open question: Could we make money, ever?

摆在面前的是一个公开的问题：我们能够赚钱吗，任何情况下？

10·But whether that growth can continue is an open question.

不过这种增长能否继续下去尚无定论。