Sometimes, sciencecan seem overwhelming. There are complicated concepts, unimaginably large - or small - objects, and vast distances that most people have a hard time understanding.

VOA: standard.2010.05.04

In cases where you have a hard decision to make, you know you're not racist.

假如你碰上一个难以抉择的情况，你知道你不是种族主义者。

耶鲁公开课 - 心理学导论课程节选

So it's often, I think people have a hard time delivering bad news,

有些时候，人们会觉得告诉客户坏消息是很难的事情，

正直是最好的 - SpeakingMax英语口语达人

This means that you can rise above your problems if you have a goal and work very hard.

VOA: special.2009.03.01

Does anyone have a hard candy?

有没有人有硬糖？

麻省理工公开课 - 电影哲学课程节选

She says being a mom is hard. "Because you have to get up every two hours in the middle of the night, and you can't go out and say 'I am going to buy this for myself.'

VOA: special.2010.05.13

So the fact is those lab animals have a hard-wired preference for foods that are high in fat and high in sugar, primarily because of the energy density that those foods bring to one, and then the variety is important because you get a mix of nutrients.

事实上 实验动物对高脂肪高糖的食物,有着强烈的偏爱,而这种爱基于,该类食物能给我们提供高能量,多样性很重要,因为你能摄取多种营养

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"We have been hit really hard by the recession and I think that probably has got a lot to do with it."

VOA: standard.2010.05.04

Let's turn to the next president who is gonna have a hard choice to make.

接下来我们谈谈下届总统选举的问题,这个不太容易搞定。

斯坦福公开课 - 经济学课程节选

"And I am grateful for their decision as well as all the Democrats who have worked so hard to make this reform a reality."

VOA: standard.2010.07.13

There's the hard sphere. It wants to collide against the wall to create a force on the wall, and I have a couple of the hard spheres that are nearby, right, and in the absence of any interactions, I get a certain pressure.

给墙一个作用力,现在它的附近，还有许多小球,没有相互作用时,它将直接冲向这面墙。

麻省理工公开课 - 热力学与动力学课程节选

Some of those is hard to put a price on, but I would say through the entire show we got to have $50,000, sitting in the show at one time.

VOA: standard.2010.02.21

But what's amazing is that the hard drives we have today in a desktop or in a laptop, a hard drive and a laptop is only about--yey big!

现在你可能对在笔记本或者,台式机中存在的硬盘更感兴趣，其实硬盘仅仅是容量大了一些！

哈佛公开课 - 计算机科学课程节选

We realized we had to push certain boundaries and there were a few weeks there that were,I have to say, some of the most hard-core filming experiences I have ever had and it was pretty intense."

VOA: standard.2010.02.27

On the other hand, we've just argued that you don't have a dominant strategy here; it's not the case that easy dominates hard.

我们刚才说这里没有优势策略,平坦之途并不总是优于崎岖之途

耶鲁公开课 - 博弈论课程节选

So I think the police service has the responsibility to involve us in that discussion and we as the public, as parliamentarians,have a responsibility to respond intelligently to that and be realistic about the hard choices that are made,"

VOA: standard.2009.04.21

We are also put in mind of how the war is, in fact, anything but a revel, though it, too, may have been provoked by a cause as insignificant and hard to trace as "some wizard vermin."

我们同样也思考事实上战争，只是一场狂欢，尽管它有可能,是由一个毫不重要难以追踪的“一些害虫“引起的“

耶鲁公开课 - 现代诗歌课程节选

Renee Smith-Valade said in addition to making it through the media sessions, she and her staff have also worked hard in making sure the Vancouver Olympics Web site has been a source of good,fast,accurate and detailed information about the Winter Games.

VOA: standard.2010.02.25

We think a lot about weight in this country, but weight is a remarkably carefully controlled parameter of a person, that is, you have to work pretty hard to gain weight or to lose weight.

我们身在一个特别关注体重的国家,然而体重是一个,需要小心地控制地人体指标,这就是说,你必须付出相当多的努力,才能增加或减少体重

耶鲁公开课 - 生物医学工程探索课程节选

We are basically committed to each other for sex but it's very hard to make those relationships last a long time because we might not have anything in common, we might not share anything with each other, we might not trust each other, we are not particularly bonded to each other.

我们基本上只有激情的承诺,长时间维持这种关系很困难,因为可能双方没有任何共同点，没有共享的东西，我们可能互不信任，不是特别亲近。

耶鲁公开课 - 心理学导论课程节选

For sure, they're all hard. Yes, studying, I have to do a lot of studying here.

肯定有过，所有的考试都很难。确实，我需要非常认真的学习。

想学习宗教学 - SpeakingMax英语口语达人

Let's say you're working really hard but you also have a workout routine.

假设你工作非常卖力，但是你也有一个健身的计划。

There is no 课堂 - SpeakingMax英语口语达人

For a couple of reasons. In some ways, this would be nicer, do expected cases, it's going to tell you on average how much you expect to take, but it tends to be hard to compute, because to compute that, you have to know a distribution on input.

关注最快的情况，在某种意义上来说，因为一些原因这样想挺不错的，当我们处理一个给定的问题,计算平均时间的时候,是很难计算的，因为你并不知道输入的分布情况,这些输入会是怎么样的呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

It would have had a hard time getting through the shields and it didn't have any distance.

几乎没法穿过盾牌,也没有远程杀伤力

耶鲁公开课 - 古希腊历史简介课程节选

The first thing I'll say is, when you have a business that's changing very rapidly, if you have five or six meetings a year, it's incredibly hard for somebody on a board to know a whole lot about your business.

我首先要说的是，你的公司发展很快时，如果你每年开五，六次会，董事们会很为难,知道整个公司的情况。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

We have a nice theoretical framework, but the application of the framework to the real data is hard and it ends up with politics underneath it all; that's just the real world.

我们有清晰的理论框架,但实际运用理论知识却困难重重,最终还是政治支配一切,这就是现实社会

耶鲁公开课 - 金融市场课程节选

If you want to get like As, you have to work hard for it.

如果你想得到A，那你得非常非常刻苦努力。

是考试期间 - SpeakingMax英语口语达人

Now if you're not in a kitchen it's going to be hard to measure a cup, or an ounce, or things like that so you'll have to be estimating.

如果你不在厨房,很难用杯,盎司,或其他单位来度量,因此需要自己来估计

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Exactly, so you might have been thought especially in years past to defragment, so to speak, your hard drive once in a while.

你可能认为需要进行,碎片整理这种操作，也可以说硬盘驱动器有时需要你这么做。

哈佛公开课 - 计算机科学课程节选