And none will be so difficult or expensive to accomplish."

VOA: special.2009.07.08

I think now we can see why these lines about the autumnal leavesare so difficult for us to incorporate into a moral reading or a theological reading of the poem.

我们现在可以看到为什么,这些关于秋天的落叶的句子如此难以,与对这首诗的道德或者神学的理解相结合。

耶鲁公开课 - 弥尔顿课程节选

I think it's actually overblown that the, the top universities in this country are so difficult.

我觉得其实顶尖大学的课程难这一点是被夸大了。

对于赞助入学的看法 - SpeakingMax英语口语达人

Today,the solution to the problem is so common that it is difficult to understand that there was a problem at all.

VOA: special.2010.07.14

I want to illustrate one of the reasons why it has been so difficult to get a grasp on the hair cells in the inner ear.

我想用图例为大家说明一下,为什么难以捕获内耳中的毛细胞。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

He said later that he did so because he was finding it difficult to bring up the question of surrender.

VOA: special.2009.12.24

Okay, so you guys have identified some of the key issues that make dietary assessment so difficult.

好的,大家指出了一些使饮食评估,变得很难的关键因素

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

An extremely low body temperature can cause the heart to beat so slowly that a pulse may be difficult to find.

VOA: special.2009.12.30

Now the question is "how does it expand" and "why is it so difficult for us to understand, accept, assimilate and live according to the fact that we can make a difference, if we understand that what we need to understand is how change happens.

问题是“它如何扩大“,以及为什么我们难以理解，我们能够做出改变这个事实,并接受，被同化以及据此生活，如果我们能了解我们需要理解的,是改变如何发生。

哈佛公开课 - 幸福课课程节选

So,just being able to pick one of those up will help our visitors understand how difficult portability was about thirty years ago."

VOA: special.2011.02.15

There's not really plural form of verbs in Korean, so then again it's also difficult.

韩语中真地没有动词复数形式，所以这一点也比较难。

韩国人经常犯的失误 - SpeakingMax英语口语达人

"Do you remember how Germont laughed when I said the mystery was difficult for him to solve because it was so simple?"

VOA: special.2009.12.26

It's so difficult. I can't find the right car for the right price.

这太难了。我找不到一款价格合适的车。

How can I 实战 - SpeakingMax英语口语达人

So they quickly passed a bill that made it much more difficult for Chinese citizens to come to live in the United States.

VOA: special.2010.03.11

So I started to talk to the VCs and asking for $10 million at a very, very difficult time in Internet history.

就在互联网历史上最艰难的时期，我开始跟风险投资商接洽，向他们要1000万美元。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

For example, celiac disease is difficult to identify because the signs of the disease are so common.

VOA: special.2009.04.14

Other languages don't have that distinction and so those distinctions are very difficult for non-native English speakers to learn.

其他语言并没有这样的差别,所以非英语母语的说话者,很难发现这些差别

耶鲁公开课 - 心理学导论课程节选

For example,celiac disease is difficult to identify because the signs of the disease are so common.

VOA: special.2010.06.15

Why has it been so hard and why does it continue to be difficult to identify these pluripotent cells within tissues?

为什么会那么难呢,为什么在组织中识别多能干细胞,始终困难重重呢

耶鲁公开课 - 生物医学工程探索课程节选

So we say a difficult or impossible job is like herding cats.

VOA: special.2009.09.27

Some people find that a psychologically difficult thing to accept, but I've believed that pretty much all my life, so I'm quite comfortable with it.

有些人会觉得心理上,很难接受这一点，但在我的人生中，我一直相信这一点，我也坦然接受这一点。

普林斯顿公开课 - 人性课程节选

So it might be difficult to imagine anything twice as big.

VOA: special.2009.09.22

So it's going to be pretty difficult for us to sustain this joint monopoly output, this collusive agreement.

因此说想要通过私下协议来,维持垄断产量,是非常困难的

耶鲁公开课 - 博弈论课程节选

So it is difficult to see the animals in the sand.

VOA: special.2010.01.04

As you have no doubt experienced, this is a dense and difficult poem, so please reread it innumerable times for Wednesday's class, and in addition to that do the other readings assigned.

你们肯定也觉得了，这首诗很复杂很难懂，所以要一遍一遍的重复读，准备好周三的课，也要读布置的其他材料。

耶鲁公开课 - 弥尔顿课程节选

It would be difficult, even painful,to do so.

VOA: special.2009.12.06

Okay. So that's what syncopation is and it isn't much more difficult than that.

好了,这就是切分音,也并非很难理解

耶鲁公开课 - 聆听音乐课程节选

"What is required of us now is a new era of responsibility Ca recognition on the part of every American, that we have duties to ourselves, our nation and the world, duties that we do not grudgingly accept but rather seize gladly, firm in the knowledge that there is nothing so satisfying to the spirit, so defining of our character, than giving our all to a difficult task."

VOA: special.2009.01.24

So, he's using intuitive-- he says difficult or easy-- so he says it's difficult, meaning the probability is very low, or easy, meaning that probability is high.

所以他直接进行了描述,他用的是困难和简单两词,他说的困难,意思就是概率很小,他说的简单,意思就是概率很大

耶鲁公开课 - 金融市场课程节选

and she's now playing some pretty fairly difficult things considering that she has only taken for a couple of years. So,

尽管她才学了几年，她现在已经可以弹奏比较难的曲目了。所以，

和钢琴老师 - SpeakingMax英语口语达人