It's not possible. If you really want to make it up,fine, but it was not possible then, it is not possible now."

VOA: standard.2009.07.31

So it's not a continuum of energy that we can have, it's only these punctuated points of energy that are possible.

我们得到的不是一个连续的能量，而是一些分立的可能的能量值。

麻省理工公开课 - 化学原理课程节选

it's not always easy or possible

做起来没那么简单，也不太可行，

临时抱佛脚？也做过 - SpeakingMax英语口语达人

The paper's authors tried to take into account other factors, but they admit it may not have been entirely possible to quantify differences in, for example,the recipient's health, which can be a big factor in the success of a transplant.

VOA: standard.2010.07.14

It's just not possible to solve some of these problems by hand and this isn't even a domain that's necessarily into the world of CS but speaks to you the applicability of it all.

手工处理这些问题似乎有些不大可能,但这还不是,计算机科学要解决的主要问题,我们的目的只是为了告诉你它的用途。

哈佛公开课 - 计算机科学课程节选

And so it's not, perhaps, crippling if this is the conclusion we reach, but at the same time it's not the only possible conclusion.

因此，如果这就是我们的结论，也没有太大关系，但同时要知道这不是惟一可能的结论。

耶鲁公开课 - 文学理论导论课程节选

So that means it's not possible, if we've made these stipulations in the first place, to have a case where l equals 1.

这说明我们之前的假设,ｌ等于１不可能的。

麻省理工公开课 - 化学原理课程节选

Similarly, it's not possible to picture or imagine what it's like to have fainted and be completely unconscious with nothing happening cognitively.

同样的，要想象,完全不省人事的昏迷,没有任何知觉的感觉也不可能。

耶鲁公开课 - 死亡课程节选

And those who argue it's not possible and use science to argue for that, very often,are hurting more than helping the field.

而那些认为这不可能的人,他们用科学来争论，很多时候，只有阻碍作用而毫无帮助。

哈佛公开课 - 幸福课课程节选

All heat couldn't get successfully converted into work That would be desirable, but it's not possible.

都变成功,把全部热量变成功是非常令人期待的，但是这是不可能的。

麻省理工公开课 - 热力学与动力学课程节选

I know it's possible to induce chemical reactions, but these are exceptions. This is not the norm.

我知道催化化学反应是可能的，但是那些是特例，不是常规情况。

麻省理工公开课 - 固态化学导论课程节选

Now it's possible somebody said both these sentences before, but you probably have not heard them.

有可能某人曾说过这两句话,可你们却并没听到过

耶鲁公开课 - 心理学导论课程节选

You'd love to have a system that spots that for you, but it's not possible.

你需要一个系统来帮你记录这些，但是这不可能。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's not the ideal of human existences; it's not the best possible life we can imagine ourselves having.

它并非人类完美的存在;,它不是我们所能想象的最美好的生活。

耶鲁公开课 - 死亡课程节选

And the research that argues that it's not possible to change,is detrimental.

认为“改变是不可能“的,研究是有害的。

哈佛公开课 - 幸福课课程节选

The argument is not saying, "If something is possible, if I can imagine it, it's true."

这个论证并不是在说,如果某件事是可能的,如果我能想象它,那它就是真实的

耶鲁公开课 - 死亡课程节选

If the dualist comes and says, "Can't you just see that it's not remotely possible, it's not conceivably possible, for a purely physical object to have experiences, to have qualia?"

如果是二元论者,他们则会走过来说,你没觉得吗,一个纯粹的物理对象,能够拥有体验和感受性的可能性,简直微乎其微,就连想想都觉得难以置信

耶鲁公开课 - 死亡课程节选

It's not perfectly round, but as much as possible.

不是完美的圆但要尽力。

哈佛公开课 - 幸福课课程节选

NO So that the more complete answer to the question is that no, we're never going to be able to observe that because of the uncertainty principle it's not possible to observe a velocity that's this slow for a macroscopic object.

所以这个问题的完整答案是，由于不确定性原理,我们不可能测量到这么慢的,宏观物体的速度，希望这个解释。

麻省理工公开课 - 化学原理课程节选

But not seeing how it's possible is not the same thing as seeing that it's impossible.

但现阶段无法预见其可能,并不代表永远不可能

耶鲁公开课 - 死亡课程节选

If we learn from these experiences in ourselves, the question is no longer whether or not it's possible to experience it more and more in our lives.

如果我们自己吸取这些经验，那么问题就不再是，是否有可能,越来越多地体验它。

哈佛公开课 - 幸福课课程节选

Imagine--this didn't, of course, actually happen, but imagine--the crucial point here is simply that we can imagine this story happening, not even that we think it's empirically possible, just it's conceivable, it's an imaginable story.

想象,当然,实际上并没发生,最关键的地方就是想象,故事因此而产生,别去想实际上是否可能发生,只需要一点想象,这是个虚构的故事

耶鲁公开课 - 死亡课程节选