Where that exploration will lead is an open question.

这种探索的方向是一个未决的问题.

Whether nations can settle their differences without war is an open question.

国与国之间的分歧能否不用战争来解决是个悬而未决的问题.

Yet when I left Korea in 2000, it was an open question whether its success could continue.

然而，当我在2000年离开韩国，这是一个悬而未决的问题，是否可以继续其成功。

At present, evaluation of ecological security is an important and open question in ecological security.

生态安全评价是当前生态安全研究中的一个重要而未决的问题。

Now it is an open question whether the fiasco has damaged his succession prospects in what is beginning to look increasingly like a nuclear-capable failing state.

现在是一个悬而未决的问题是这次的惨败是否摧毁了他为成为日益增多的拥有核能力却是个失败国家的继承愿景.

It is an open question whether an inheritance tax structured along these lines could be made politically attractive, and in this Article, I do not attempt that task.

遗产税是否沿着这条思路建构这一悬而未决的问题很有政治吸引力，我将在本文中企图完成这一任务。

E. g. It is an open question to solve.

这个问题有待于公开讨论解决。

Hence, the open question is partly solved.

部分地解决了这一公开问题。

It is open question and full of controversy .

这是一个充满争议的开放性问题。

Whether mercy killing is justifiable is still an open question.

安乐死是否正当仍然是一个有争议的问题。