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

Sam used to be a river raft guy, a river rafting guide, so we would go do that.

萨姆以前是漂流队的指导员，所以我们可以玩那个。

与朋友们的回忆 - SpeakingMax英语口语达人

We remember the fish that we used to eat free in Egypt Okay, we were slaves, but the food was free, you know?

我记得以前在埃及的时候不花钱就可以吃鱼,虽然我们是奴隶，但是食物是免费的，你知道吗？

耶鲁公开课 - 旧约导论课程节选

And what you can see is we have this new constant that we haven't seen before.

你们可以看到,这个新的常数,这是我们以前没看过的。

麻省理工公开课 - 化学原理课程节选

Example, protein hormones are insulin which we've talked about before and glucagon, and growth hormone which we haven't talked about but that's very important during periods of life like adolescence, when rapid growth of your bones is occurring.

例如,我们以前讲过的胰岛素,还有胰高血糖素都是蛋白质激素,生长激素也是,尽管我们还没有讲过它,但它在人的青春期阶段,起着非常重要的作用,骨骼在此时期快速生长

耶鲁公开课 - 生物医学工程探索课程节选

Even if we are dualists, as we've noticed before even if the soul is something different from the body it could still be the case, logically speaking, that if the body gets destroyed the soul gets destroyed as well.

就像以前一样,即使我们是二元论者,认为灵魂是不同于肉体的,但从逻辑上来说,仍然可能出现,假如肉体死去,灵魂也随之消亡的情况

耶鲁公开课 - 死亡课程节选

For instance in the past, we had that silly little program for computing the average of some quizzes and it was actually a pretty bad implementation because I had essentially hard coded in the number of quizzes.

比如在以前，我们做了一个,计算平均数的程序,这是一个相当挫的实现,因为我硬编码了测试的数字。

哈佛公开课 - 计算机科学课程节选

The reason I want to point this out to you is, if we go back up to the kinds of data objects we started with, floats, ints, strings, they actually behave the same way.

我要为大家指出这一点的原因是，如果我们想一下以前讲过的,数据类型的种类，浮点数，整数，字符串，它们实际上有相同的行为方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

But this case should remind you of something, because this case is one that we've actually discussed before "Methuselah" under the label of "Methuselah."

但这个例子应该让你们想起一件事，因为以前我们曾探讨过这个例子,援引的例子是“

耶鲁公开课 - 死亡课程节选

I want to remind you that we were talking at a fairly high level about complexity.

我想提醒大家我们以前,是在一个相当高的高度上讨论复杂度问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is the claim--not that nobody believes they're going to die; that's the one we've been talking about for the last lecture or so--but instead, the claim that everybody dies alone.

这论点是这样的，不同于我们以前所讲的;,没有人相信自己会死亡，而是说每个人都是孤独而死的。

耶鲁公开课 - 死亡课程节选

When Plato asked himself how could that be, the answer he gave is, well, it's got to be we were previous acquainted with the forms before our life in this world, and that shows that the soul must be something that existed prior to the creation of the body.

柏拉图问自己这究竟是怎么回事，他给出的答案是,我们有生命以前就,已经熟悉了这些形式，这就表明灵魂是在,身体存在之前就已经具有的了。

耶鲁公开课 - 死亡课程节选

So I just have to see, oh, here's a D, let me keep looking, D here's an A, keep looking here's a V, here's an I, here's a D and yet, and this is one tidbit we introduced a week or so ago, how do I now know if I'm just given the address of the start of the string where the end is?

我只需要看到，哦，这里是一个D，让我接着往下看，这里是A，接着这是V，这是I，这是,然而，这是我们一周以前介绍的花絮，如果你给我一个字符串开始的地址,我怎么知道它什么时候结束？

哈佛公开课 - 计算机科学课程节选