I'm still not clear what the job involves.

我仍然不明白这项工作包括哪些内容。

《牛津词典》

It is still not clear who was behind the killing.

至今尚不清楚谁是这起谋杀案的幕后策划者。

《柯林斯英汉双解大词典》

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》

Professor Robinson says it is not clear when the first marriage between a black person and a white person took place.

VOA: special.2010.09.03

Well you can read the story, it's in Numbers 20, the incident is described there. But the answer is still not entirely clear, it's not clear what Moses did that was so bad as to deserve this punishment.

你们可以阅读这个故事，在民数记20，讲述了这个事件,然而答案却仍然不是完全清楚的，摩西究竟做了什么,坏事才遭受这样的惩罚，还不完全清楚。

耶鲁公开课 - 旧约导论课程节选

Or at least,it is clear what your alternatives are; it's not clear which alternative would be any better.

至少就算选择明确;,哪个选择比较好的标准却不明确。

耶鲁公开课 - 死亡课程节选

But he says it is not clear that support for this strategy will last indefinitely.

BBC: Arafat survives Israeli incarceration

It's not clear whether the results of this test will convince the Orthodox Church.

BBC: Despatches

It is not clear whether the new Bush regime will continue the previous administration's effort.

BBC: US banks lax on dirty money