True, some problems can be given that clearly have a right or wrong answer. But most are not so clear cut.

事实上，有些问题可以很清楚的给出一个正确或者错误的答案，而大多数还是无法如此清楚的进行界定的。

youdao

In a few seconds her tears stopped and she closed those eyes that had always seemed so clever and clear, but now looked so fearful.

几分钟后她的泪水停止了，她慢慢合上了眼，她的眼神总是那么清澈，闪着智慧的光芒，但是现在那里面却满是恐惧。

youdao

But often it's not so clear.

但经常不是很明确。

youdao

"I think they were entitled to take action against a budding dictator. But even if they weren't, it seems to me that it is not so clear that he is in the right that the United States should be meddling in Honduras' affairs."

VOA: standard.2009.07.03

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

You can see that as you fill up your periodic table, it's very clear. But also we'll tell you a pneumonic device to keep that in mind, so you always remember and get the orbital energy straight.

在你们填周期表的时候，非常清楚但是我们也要告诉你们,一个策略去记住它，所以你们总是记得,并得到连续的轨道能量。

麻省理工公开课 - 化学原理课程节选

But it is not so clear whether the state-of-the-union address has advanced or reduced Congress's appetite for change.

ECONOMIST: The revolution, phase two | The

But so-called "clear the air" talks on Monday afternoon saw 26-year-old Tevez formally withdraw his request and Mancini rewarded the Argentine with a place in the starting line-up and the captain's armband.

BBC: Manchester City 1-2 Everton

We took several years to enter W.W.II, but once we entered, we did so with the full cooperation of all but diehard conscientious objectors, and we did so with a clear desire to not only win the war, but win the peace.

FORBES: Remembering 9/11: Turning Box Cutters Into Plowshares: Part 2, The Solution.