We're exposed to things that might cause cancer where weren't exposed to them before and so that might be a reason.

我们暴露于可能致癌的物质中,这些物质在以前是没有的,这可能就是原因之一

耶鲁公开课 - 生物医学工程探索课程节选

but I was up really late the night before and I just randomly decided not to go.

但我前一晚熬夜了，所以我就临时决定不去了。

I was实战 - SpeakingMax英语口语达人

Just to plant a couple of seeds so that you've seen it before and then we can revisit in more useful context.

前人多栽树,后人易乘凉。

哈佛公开课 - 计算机科学课程节选

For example, in looking at a stock, if you ask people to predict a stock market price they think of some number that they saw before and they are overly influenced by that number.

例如,预测股票时,如果让人们去预测一支股票的价格,人们会想起之前见过的数字,并深受其影响

耶鲁公开课 - 金融市场课程节选

We've talked about Mozart before and we're going to go on now to talk about Mozart's Requiem.

之前我们已经谈论过莫扎特了,我们现在还要继续,说说莫扎特的《安魂曲》

耶鲁公开课 - 聆听音乐课程节选

Their memory improved significantly, so their intelligence level as taking by tests before and after compared to control group improved significantly after a single week.

他们的记忆力有明显改善，他们的智力水平,在实验前后进行测试，再与对照组相比,在仅仅一周后就有明显改进。

哈佛公开课 - 幸福课课程节选

And why the claim of the utter destruction of the Canaanites when evidence points to close Canaanite origins? This practice, which I mentioned before and is known as herem or the ban, is not unique to Israel. I know some of you have studied it in sections you looked at the inscription of King Mesha, King Mesha of Moab.

那为何要声称迦南彻底的毁灭呢？,当证据指出了迦南的起源，这一习俗，也就是我之前提到的禁忌或祭祀，并不是以色列独有的，我想你们也已经学过,你们看摩押米沙王的题词，摩押的米沙王。

耶鲁公开课 - 旧约导论课程节选

Oh, I know this. I've been here before and I know this place very well,

哦，这个我知道，我去过那里，我对那个地方很熟悉。

remind me of 课堂 - SpeakingMax英语口语达人

He is courting poetic fame more shamelessly at this point in his career than he has before and perhaps that he will after.

在这个时候，他比以前或是以后都更加厚脸皮的渴求,作为诗人的名望。

耶鲁公开课 - 弥尔顿课程节选

Justin So Justin said it could be new things that are around and you're exposed to stuff we weren't exposed to before and that's true.

贾斯汀,贾斯汀认为我们周围的环境,出现了很多新物质,并且人们暴露在前所未有的环境中,这是事实

耶鲁公开课 - 生物医学工程探索课程节选

You sit down the night before and you had a couple of ideas.

交论文前一晚终于坐下来，有几个点子。

耶鲁公开课 - 死亡课程节选

Several things come to mind. First of all, the Greeks now live in places where they never lived before and their presence has a real impact of a different degree in every place.

有如下几点,首先,希腊人如今定居在他们从未居住的地方,并且他们的出现,对于每个地区都有不同程度的影响

耶鲁公开课 - 古希腊历史简介课程节选

So this is a Nash Equilibrium, but okay we know what it is in jargon, and we know, we kind of knew that was going to be an important point, because most of you have taken Economics courses before and you know that whenever lines cross in Economics it's important, right?

这就是纳什均衡了,是个术语,而且这个知识点是相当重要的,因为你们大多数人之前都学过经济学,而且都知道经济学的交点都很重要

耶鲁公开课 - 博弈论课程节选

when I was spoken before and how I do speak now.

知道以前我怎么说的和现在我说得如何。

学习英语的理由 - SpeakingMax英语口语达人

I've heard, I've heard about the Academy of Sciences before and

我以前听说过科学院，

来西部的原因 - SpeakingMax英语口语达人

He gave me good advice before and it was helpful.

他之前给过我一些建议，确实帮助很大。

If I were 实战 - SpeakingMax英语口语达人