Adjective:

1. poorly stated or described;

   "he confuses the reader with ill-defined terms and concepts"
   

2. not clear to the mind;

   "the law itself was unclear on that point"
   "the reason for their actions is unclear to this day"
   

3. not easily deciphered;

   "indecipherable handwriting"
   

1.不清楚的；不确定的
If something isunclear, it is not known or not certain.

e.g. It isunclear how much popular support they have among the island's population...
目前还不清楚他们在岛上的民众中间有多高的支持率。
e.g. Just what the soldier was doing in Bireij isunclear...
就连那个士兵在比雷杰干什么都不清楚。

2.不明白的；不清楚的；不确定的
If you areunclear about something, you do not understand it properly or are not sure about it.

e.g. He is stillunclear about his own future...
他仍然不清楚自己的将来会怎样。
e.g. Experts remainunclear as to why the danger appears to have been steadily increasing.
专家依然不清楚为什么危险似乎一直在增大。

1. 模糊：通过LG技术研发工程师了解到,普通的液晶显示器在显示暗黑区域或者明亮区域的画面时,会出现细节丢失和图像模糊(unclear)的现象,而这正是由于对比度不足所造成.

2. 清楚：报道清楚的(clearly)指出引起暴力冲突和市民死亡的原因并不清楚(unclear),所有在这里评论的人只是基于他们自己的成见而不是事实,为你们所有的人感到羞耻!

3. 不清楚的：uncomfortable 不舒服的 |unclear 不清楚的 | unfriendly 不友善的

4. 不洁的：uninteresting 没有趣味的 |unclear 不洁的 | unfair 不公平的

Reason of attack remains unclear.

攻击的原因仍不清楚。

I have always been pretty unclear on this issue.

这个问题我一直弄不太清楚。

I'm unclear about what you want me to do.

我不太明白你要我做什么。

His unclear articulation is difficult to understand.

他说话含混不清，听的人很吃力。

The ending of the movie is somewhat abrupt, and unclear.

这部电影的结尾有些突兀和含混不清。

His motives are unclear.

他的用意不明。

It is unclear whether there is any damage.

有无损坏尚不清楚。

Your diagrams are unclear.

你的图表不清楚。

I'm unclear about what you want me to do.

我不太明白你要我做什么。

It is unclear how much popular support they have among the island's population...

目前还不清楚他们在岛上的民众中间有多高的支持率。

Just what the soldier was doing in Bireij is unclear...

就连那个士兵在比雷杰干什么都不清楚。

He is still unclear about his own future...

他仍然不清楚自己的将来会怎样。

Experts remain unclear as to why the danger appears to have been steadily increasing.

专家依然不清楚为什么危险似乎一直在增大。

But so far, the reason and mechanism of this disease still are unclear.

但到目前为止, 其发病的原因和机制尚不清楚.

So it is unclear whether it can operate at a profit or not.

因此,FMG是否还能保持盈利尚不清楚.

It is unclear whether the meeting will go ahead as planned.

会议是否会如期举行还不清楚.

Periodontitis is a common and frequently encountered disease. However, its mechanism is remain unclear.

牙周病是口腔的常见病和多发病, 但其具体机制至今尚未完全明了.

The exact cause of depression remains unclear.

引起忧郁症的确切原因还没有查明.

It is unclear whether that means the West wants Mr Kibaki to step down.

然而,现在还不能确定这是否意味着西方要齐贝吉先生退位.

Faxed photos are often unclear.

传真照片经常失真.

We are very upset with the fact, that some value us by unclear rumors.

我们因为一个事实而沮丧, 那就是有些人以未澄清的谣言来判定我们的价值.

In 10 minutes, a hurricane releases more energy than all of the world's unclear weapons combined.

飓风在10分钟内释放的能量比全世界核武器加起来释放的还要多.

While China's views unclear, there is speculation it would prefer the known quantity of Mr Chang.

尽管中国的态度尚不明朗, 但有人猜测它将倾向于已经为人所知的张成泽.

The timing of any move remains unclear amid about a potential restructuring of the telecoms market.

在人们对中国电信市场可能出现的重组揣测纷纷之际,相关举措何时出台目前仍不明朗.

The assailant, an unemployed Chinese man, killed himself after the stabbings, and his motive remains unclear.

持刀行凶者是一名中国无业男子, 他随后跳楼自杀, 其杀人动机尚不明了.

It is unclear whether or not it will be extended.

此政策是否会延期现在还不太明朗.

A clarification adjusts statements that were not factually incorrect but may have been unclear or misleading.

澄清调整不是真实地不正确的,但是可能不清楚或似是而非的陈述.

FROM THE WORLD's POINT OF VIEW that future seems unclear, uncertain, and unstable.

从世界的观点看来,未来似乎是模糊不清 、 不确定和不稳定的.

Will our future be too unclear, that there's no hope in it?

我们的未来会不会很渺茫, 以致没有一点点的的希望.

Carrie : I know! It is very unclear.

我明白! 这感觉难以言喻.

It is unclear whether Mr. Roh will discuss economic data and broader liberalization with Mr. Kim.

尚不清楚卢武铉是否将与金正日讨论经济数据以及更广泛的自由化问题.

I am happy to clarify any points that are still unclear.

我愿意说明任何仍然不清楚的地方.

An open verdict was the only appropriate one , given the very unclear evidence at the inquest.

调查发现的证据十分不清楚,只有作出存疑判决才恰当.

• Whether this boosted his morale or irked him is unclear.

  出自：Harper's Magazine

• It is unclear how much notice he took of civil servants.

  出自：Times Educational Supplement