And the books cannot be placed on more than one device, so they are not easy to share.

VOA: special.2009.09.03

It turns out that getting large molecules like this, particularly large charged molecules like nucleic acids, inside of cells is not so easy.

后来证实,将这样的大分子物质,尤其是像核酸这样带有大量电荷的分子,送入细胞不是一件容易的事

耶鲁公开课 - 生物医学工程探索课程节选

So I'm actually writing my own fiction, and no, it's not easy. But you can actually learn from, if you read other writers.

我现在也正在写自己的小说，真的不容易。但是你可以从你以前阅读的作品中学到很多。

写作课程比较难 - SpeakingMax英语口语达人

So it's a different class of resource not as easy to develop, and not even recognized as something worth pursuing, say,twenty years ago."

VOA: special.2009.10.23

So obvious and so easy to be quench't And not as feeling through all parts diffus'd That she might look at will through every pore?

如此显露，如此易受损伤,为什么不像触觉，分布在全身各部,可以通过每一根毛细管去自由观看？

耶鲁公开课 - 弥尔顿课程节选

They act as if they are giving us charity,she says. So really it is not easy.

VOA: standard.2009.08.27

So if it's so easy to imagine that for the rat, why not for us?

即然能简单地想老鼠，为何不能推及人？

耶鲁公开课 - 死亡课程节选

And it turns out not to be so easy.

实际上这并不怎么简单。

麻省理工公开课 - 热力学与动力学课程节选

Not so easy to see. All right, but this is actually a great one of those educational moments. This is a great example to think recursively. If I wanted to think about this problem recursively- what do I mean by thinking recursively?

看不太出来，好，但实际上是一个有教育意义的时刻,这是一个很好的关于递归的例子,如果我用递归的思想,去考虑这个问题-,我该怎么用递归去解决这个问题呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

But it's actually not even quite so easy or so simple as these early scenes that I've just discussed might make out.

都与之密切相关,但在之前。

耶鲁公开课 - 1945年后的美国小说课程节选

So, numbers count, but it's not an easy one-to-one question, various issues will determine who comes out ahead.

所以,人多力量大,但这不是简单一对一的问题,很多因素决定了谁将更胜一筹

耶鲁公开课 - 古希腊历史简介课程节选

And so, it's not an easy, clear-cut question.

所以，这不是一个简单的非黑即白的问题。

对于安乐死的看法 - SpeakingMax英语口语达人

So obviously, not a good thing, but amazingly easy to fall into this trap.

天呐，他真棒，所以很明显，这不是一件好事，但是很容易上当。

麻省理工公开课 - 计算机科学及编程导论课程节选