"Today,in the face of violence from those who would only destroy, Iraqis took a step forward in the hard work of building up their country.

VOA: special.2010.03.13

PROFESSOR BAWENDI: The only But it's hard to imagine an irreversible compression the way we can just imagine an irreversible expansion.

,但是我们很难,像描述不可逆膨胀一样,来描述不可逆压缩。

麻省理工公开课 - 热力学与动力学课程节选

The "parable of the vineyard" assures us that God rewards us regardless of our hard work and investment, but only if we're called, only if God chooses us.

葡萄园的寓言“使我们确信,无论我们是否努力工作都会得到上帝的奖励，但除非上帝选择了我们。

耶鲁公开课 - 弥尔顿课程节选

So now it's two. It's not only one. So it's very hard."

VOA: special.2010.05.13

Life has only recently got better for hard of hearing patients with the development of modern hearing aids and cochlear implants.

直到近年来,随着现代助听以及耳蜗植入设备的开发,听力障碍病人的生活才有了改善,不过，有了新技术。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

He said the men should bring only coffee,hard bread,and salt.

VOA: special.2009.11.19

To use an ancient expression from the 1970's, which only John and I will appreciate, it's really hard to grok what that code is doing, to understand what it's trying to make happen.

我和约翰都会同意，70年代的一句话来概括，那就是很难理解编码的内容，以及它想要完成的工作。

麻省理工公开课 - 计算机科学及编程导论课程节选

France is not the only country where young people are having a hard time.

VOA: standard.2009.11.12

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