Experts say the situation is likely to continue until investors feel more sure about signs of economic recovery.

VOA: special.2009.08.21

But then we went a little further, we considered those other cases and people weren't so sure about consequentialist moral reasoning.

但随着谈论的深入，我们发现在其他情况中,人们不再对后果主义道德推理那么确定了。

耶鲁公开课 - 公正课程节选

I'm not sure about the other schools, but I know FIT, we get in free.

我不确定其他学校的情况，但是我知道FIT的学生可以免费进去。

学生们的艺术热情 - SpeakingMax英语口语达人

But Professor Bedau says that nobody can be sure about the results of making new forms of life.

VOA: special.2010.07.20

Nobody could be exactly sure about how this process worked.

因为没人清楚具体的过程到底是什么

耶鲁公开课 - 古希腊历史简介课程节选

They said they were not sure about his decision to withdraw from university studies to play poker.

VOA: special.2010.07.26

So, we're not sure about this.

我们不是很确定。

麻省理工公开课 - 计算机科学及编程导论课程节选

When people examine this document, they will say, 'He was not sure about that.'

VOA: special.2009.10.08

What could you say for sure about it?

哪一点你们比较确定

耶鲁公开课 - 聆听音乐课程节选

But some people are still not sure about these programs.

VOA: special.2010.06.17

I believe it's called Yogi Berra Park but I'm not sure about that.

我记得它叫Yogi Berra公园，但我也不太确定具体名称。

布朗克斯的景点 - SpeakingMax英语口语达人

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

VOA: special.2010.09.15

He may have even attended a Quaker meeting, but we're not sure about that.

他甚至可能参加过贵格会议,但我们对此不能确定

耶鲁公开课 - 欧洲文明课程节选

And doctors still are not sure about the cause.

VOA: special.2009.04.07

Similarity predicts the success of a marriage and through a phenomena people aren't exactly sure about, couples become more and more similar over the course of a relationship.

相似性能预测到一段婚姻是否会成功,人们也解释不清这个现象，相处久了，夫妻之间就有了夫妻相。

耶鲁公开课 - 心理学导论课程节选

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

VOA: standard.2009.04.11

OK, important -- if you are part of this group here think about it and make sure you understand that.

好的，这很重要，如果刚才你选了可逆过程,请好好想想并且保证已经理解了这个问题。

麻省理工公开课 - 热力学与动力学课程节选

She says their latest findings should settle any question about the value of making sure every pregnant woman receives iron supplements.

VOA: special.2011.01.05

I'm not at all sure there's anything more to be said about that passage, which I think lays it to rest.

我不确定这篇文章是不是,还要更多的讲解，就这样的吧。

耶鲁公开课 - 文学理论导论课程节选

When Mister Wesley was sure he had found something new, he quickly contacted professional astronomers about his find.

VOA: special.2009.08.25

Well, as long as you mentioned your recent work, I wanted to get into, to make sure that we have a chance to talk about this important book.

既然您提到了您最近的著作，我们就借此机会,来谈一谈这本重要的书。

普林斯顿公开课 - 人性课程节选

Some members of the local community had strong feelings about the death and worked to make sure the skeleton stayed on the island.

VOA: special.2011.06.29

So, regardless of the type of wave that we're talking about, there's some common definitions that we want to make sure that we're all able to use, and the first is amplitude.

所以，不管我们讨论的,是哪种波，它们都有一些我们,能用到的共同的定义,其中第一个就是幅值。

麻省理工公开课 - 化学原理课程节选

The Hepburns made sure to educate their children about important political and social subjects.

VOA: special.2009.09.20

Audience: Hi Steve. So earlier in your presentation, you're talking about that it was a great time for innovation and all these ideas were happening and I'm sure you'd seen a lot of these ideas happened over your years at Microsoft.

观众：你好史蒂夫，你之前讲了，你在谈的是现在是创业革新的好时期,各种想法都在萌芽，我想你在微软,工作多年肯定见识过很多很棒的点子。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

But I was sure of two things about the clergyman.

VOA: special.2010.03.27

Weird things, bad things can happen and so one of the lessons too that will be repeated throughout the course is to actually rigorously error check and make sure that you're always thinking about your user being a bad guy.

各种古怪的事情就会蜂拥而至,所以在这个课程中我反复强调,要一丝不苟地检查错误,你就当你的用户是个调皮捣蛋的家伙。

哈佛公开课 - 计算机科学课程节选

There was something else that was worrying Oive, and she did not know just how to begin to talk about it At last,she spoke out, not sure what Nate's answer would be.

VOA: special.2010.01.09

Now, I'm not sure what kind of video we're talking about, and I'm not sure if the lecture will be the internet when we're all done. But nonetheless I'm gonna call this the next big thing-the video internet .

呃，我不确定我们要谈关于什么样的视频,我也不确定当这个讲座全部结束时,还是不是关于网络，但尽管如此,我还是要叫它为下一重大事件，网络视频。

麻省理工公开课 - 媒体、教育、市场课程节选

Again, leaving aside the science, about which I'm sure some of you know more than me here, the issue of carbon emissions is a Prisoners' Dilemma.

抛开科学层面来说,我相信在座的一些同学比我知道的还多,碳排放问题也是个囚徒困境

耶鲁公开课 - 博弈论课程节选