So, we know now that we have charged particles. Are these negatively or positively charged based on this evidence?

弯曲的角度,现在我们知道,阴极射线是带电粒子,但从这个实验？

麻省理工公开课 - 化学原理课程节选

I know we have vacation, but school is important to me.

我知道现在是假期，但学业对我来说很重要。

I'd rather 实战 - SpeakingMax英语口语达人

Didn't I know anything about turn about to right, but now I think I know enough to amuse them and to entertain them.

我从前从不知道这些东西，但现在我已经学的足够多,足够引起他们的兴趣了。

麻省理工公开课 - 媒体、教育、市场课程节选

So platina is like a diminutive of silver, but we now know that platinum is far superior to silver It is far more noble. It has a higher melting point, a higher chemical inertness, a fantastic metal.

所以普拉塔就像一个小小的银，但我们现在知道普拉塔比银要好很多,更为珍贵，熔点更高，化学惰性更高，是一种非常不可思议的金属。

麻省理工公开课 - 固态化学导论课程节选

But now, it has come to light that they are the ones that do get credit for first really coming up with this idea of a spin quantum number, and it's interesting to think about how the politics work in different discoveries, as well as the discoveries themselves.

但现在我们,知道他们是,最先想出自旋量子数,这个概念的人，看各种发现中的,政治学是十分有趣的，和发现本身一样有趣。

麻省理工公开课 - 化学原理课程节选

Suppose now--harder to imagine, but let's try it-- suppose now that you are an indignant angel and you're playing against, and you know this, you're playing against an evil git.

假设你是一个愤怒天使,我知道这个对你们来说很难,但你现在知道你要和,一个自私鬼博弈

耶鲁公开课 - 博弈论课程节选

I don't know if you were reading about the subprime crisis, but we are living in a time, at this moment, of a financial crisis called the subprime crisis.

我不知道你们是否读过次贷危机的新闻,但现在,我们正在经历一场,名为次贷危机的金融危机

耶鲁公开课 - 金融市场课程节选

Object permanence is the understanding that things exist when you no longer see them.

客体永存性是指,知道某人或某物虽然现在看不见,但仍然是存在的

耶鲁公开课 - 心理学导论课程节选

Some may or may not be useful, but you just don't know.

有些可能有用,有些可能没用,但你们现在还不知道

耶鲁公开课 - 基础物理课程节选

Right now I want to go out with Peggy Sue, but if I knew these true--It's not that you think, oh your roommate has made it up, that these are lies; these are slander.

现在我想和Peggy，Sue约会，但如果我知道这些事实，不是你所想的那样，你室友瞎编的，都是些谎话;,它们是诽谤。

耶鲁公开课 - 死亡课程节选

But for now let's simply say that we have a diffraction which we know occurs only by wave-like behavior and it involves the use of x-rays. Why x-rays?

但现在让我们来简单假设一下,我们知道,只波才发生衍射,而且衍射涉及了X光的使用，为什么是X光？

麻省理工公开课 - 固态化学导论课程节选

And he actually did this in the late 1800's, back before even all of the elements that we know today were discovered, really only about 60% or so, 70% were discovered then that we now know today.

他最终在十九世纪晚期完成了这一壮举，难能可贵的是,虽然我们现在已经发现了所有的元素，但在当时已知的元素只有我们现在知道,百分之六七十，在这种情况下。

麻省理工公开课 - 化学原理课程节选

psi So we're going to for psi, and before that, we're going to figure out that instead of n just that one quantum number n, we're going to have a few other quantum numbers that fall out of solving the Schrodinger equation for what psi is.

我们要讲到，但在这之前，我们已经知道了,主量子数，现在我们需要知道，其他一些,解psi的薛定谔方程,所需要的量子数。

麻省理工公开课 - 化学原理课程节选