Experts are not sure whether this tribe placed bodies in caves as part of burial ceremonies or for other reasons.

VOA: special.2010.11.10

You feel physiologically aroused but you're not completely sure why, and you have to make up an explanation for it.

你感觉到性觉醒,但是不能确定是什么原因，你不得不给出一个解释。

耶鲁公开课 - 心理学导论课程节选

and then I realized I'm not really sure what I want to go for,

然后我意识到自己不确定学什么，

为我的生活 - SpeakingMax英语口语达人

They are also advised not to give anti-reflux medicines for hoarseness unless they are sure patients need them.

VOA: special.2009.09.02

I'm not sure whether we'll use the Classes server to have you sign up for discussion sections online, or whether we will do it the old-fashioned way and have you sign up on forms that we'll give you here in class.

我还没想要是用校网站,让大家在线讨论，还是用传统的,课堂讨论。

耶鲁公开课 - 新约课程节选

Treasury Secretary Chase was for the plan only if Lincoln was sure it would not mean war.

VOA: special.2009.08.06

All right, so I did this not at all purposely, but this can point out for you that you need to make sure that the number of electrons that you have in your molecular orbital does match up with the total number that you have in your atomic orbitals.

我并不是故意这么做的，但这告诉我们必须要保证,分子轨道里的电子数,和原子轨道里的,总电子数能对上。

麻省理工公开课 - 化学原理课程节选

For instance,even native speakers are often not sure when to use "lie" and when to use "lay."

VOA: special.2010.02.11

You can laugh for things you are not so sure with.

你不确定的事情就可以一笑置之。

普林斯顿公开课 - 人性课程节选

I think it's still possible for us to stamp out al- Qaida, to make sure that extremism is not expanding but rather is contracting.

VOA: special.2009.02.21

Good, so by standing not only does she not win the election, but she actually causes the election to be won for sure by Jean who's further away from her.

很好,参选不仅不能让她在选举中获胜,而且会导致,离她更远的吉恩在选举中获胜

耶鲁公开课 - 博弈论课程节选

But Duncan was not sure that playing Porgy would be right for him.

VOA: special.2010.03.07

.. I guess, unfortunately, it is for... there needs to be a number put somewhere, like, I'm not sure what that number would be, but I do agree that there could possibly be a number put on the human life.

我觉得，不幸的是。,有时确实需要标价，不过我不确定具体数字，但我确实认同,人的生命也许可以被标价。

耶鲁公开课 - 公正课程节选

For example,experts are still not sure what kind of animals hunt echidnas.

VOA: special.2009.07.07

this court is attributed to him, not 100% sure it's his-- said, "I would not give a fig for the simplicity on this side of complexity, " but I would give my life for the simplicity on the other side of complexity."

这个报告厅就是他捐建的，但不能完全确定是他所有的--说过，“我不会认为与复杂性一致的简单性是微不足道的，但我会把我的一生用来研究与复杂性相对的简单性“

哈佛公开课 - 幸福课课程节选

Experts do not know for sure about his mother,Caterina.

VOA: special.2010.09.15

I'm not sure why it's not S for save but it's write out and that means save.

我也不明白为什么不用S代表“保存“而是用“写出“,“写出“也就是“保存“啦。

哈佛公开课 - 计算机科学课程节选

Mekonnen said he was not sure whether the government would ask for extradition of those convicted in absentia.

VOA: standard.2009.12.23

If you read Walt Whitman, you will see much of the same ethos So, Ginsberg is not the first to do this in the American tradition, for sure, but it's a very important part of what the Beats revive.

如果你读过沃尔特惠特曼，你会发现类似的思潮,所以金斯堡肯定不是第一个在美国传统上这么做的，但它是使垮掉的一代复兴的重要部分。

耶鲁公开课 - 1945年后的美国小说课程节选

I'm not sure. And if the whole world is against the good justice for the suspects of the Rwandan genocide, what next?

VOA: standard.2009.04.10

Oh, I'm not sure what the word for this is."

噢，我都不确定我该用什么词来描述它了。”

紧张是学英语的敌人 - SpeakingMax英语口语达人

But U.S.Republicans are not so sure about the president's plans for the economy at home.

VOA: standard.2009.04.11

Do not think of a pink elephant for the next three seconds ? and I am sure no one thought of a pink elephant right?

在接下来的十秒钟里不要想粉色大象,我肯定没有人想一头粉色大象，是吗？

哈佛公开课 - 幸福课课程节选

"For sure the military will not only clear and secure the area, but ensure unless and until the area is taken over completely by the civil administration, and the writ of the government is restored and peace and normalcy return to the area, the military will remain in the area,".

VOA: standard.2009.05.07

"Civil Society plays a key role in helping to communicate the need for mothers to bring their children in early for vaccines to complete the vaccination series to make sure that non-governmental organizations deliver and offer vaccines not only one day a week necessarily but on a regular basis,".

VOA: standard.2009.12.28

"If in the future, banks need exceptional assistance in order to get through this, then we will make sure that assistance comes with conditions, not just to protect the taxpayer, but to make sure this is the kind of restructuring necessary for them to emerge stronger.

VOA: standard.2009.04.05