My bikes wouldn't fetch a nice price and wouldn't be worth trying to sell, but they could be useful to somebody else."

VOA: special.2009.11.16

Now, it's also very useful to look at some of the relations that come out of these fundamental equations.

我们接下来可以考察,从这些基本方程中得出的一些方程。

麻省理工公开课 - 热力学与动力学课程节选

So I think you will find it useful to use this phrase for expressing yourself in many conversations.

你会发现，在许多对话中，这个句型能恰当地帮你表达自己的意思。

That's all课堂 - SpeakingMax英语口语达人

It is said to be most-useful to athletes in endurance sports such as cycling and distance-running.

VOA: special.2011.04.12

It's an example of a very common tool that's going to be really useful to us, not just for doing search, but for doing a whole range of problems. That is, in essence, the template the describes a log style algorithm.

不仅仅是做搜索,还可以解决一整类问题,本质上，这个模板就描述了,对数形的算法,我们一会再回来。

麻省理工公开课 - 计算机科学及编程导论课程节选

Labor union organizers in California found Woody Guthrie useful to their cause.

VOA: special.2010.06.20

It's useful to have the average acceleration, which you can find by taking similar differences of velocities.

平均加速度也是很有用的,你可以用类似方法,取速度的变化量求出来

耶鲁公开课 - 基础物理课程节选

They created Pedal People as a way to create a useful service that helps the local economy and is environmentally friendly.

VOA: special.2009.12.04

So, in this class we'll be talking about energy a lot, and it's often useful to draw some sort of energy diagram to visualize the differences in energy that we're discussing.

所以，这堂课我们会讨论很多,关于能量的问题，讨论时，画能级图来使能量差别,形象化常常是很有用的。

麻省理工公开课 - 化学原理课程节选

Instead,she said people with mental disabilities needed to be treated as useful citizens and given special education and training.

VOA: special.2009.08.23

Now, if we go back to our Carnot cycle which is a set of reversible paths, it's useful to compare this to what happens in an irreversible case.

如果回到卡诺循环,它是由一系列可逆过程组成，我们将它,和不可逆过程的情况相比较。

麻省理工公开课 - 热力学与动力学课程节选

"When those products are at the end of their useful life, how are they going to be broken down?

VOA: special.2010.01.08

This chart, very boring and uninteresting but useful to say there are very well defined rules as to when you're writing code, what operators, like what syntax should get evaluated first.

这个图表，看起来很烦，很无趣，但是它很有用,有非常明确的规定,譬如，当你写代码时，就会涉及操作符的优先级。

哈佛公开课 - 计算机科学课程节选

It is also useful because the mold can be used over and over again to make exact copies of the ceramic form.

VOA: special.2009.09.09

It's useful to separate these kinds of signals into three categories.

将这些信号分为三大类会比较容易理解

耶鲁公开课 - 生物医学工程探索课程节选

They hope that future synthetic cells can make useful bacteria for products like bio-fuels or vaccines, and to clean up polluted water.

VOA: special.2010.07.20

It's going to be useful to have that notation around.

这个符号是我们会经常用到的

耶鲁公开课 - 博弈论课程节选

But she said that she wanted to help people, especially young people, to make useful lives for themselves and to help others.

VOA: special.2009.03.08

that you know it's not going to happen or you know it's not useful to do.

你知道这事没发生的可能，或者这么做并不会起到什么作用。

The thing is 课堂 - SpeakingMax英语口语达人

The systems are especially useful for those who are too sick to go a long way for water.

VOA: special.2009.07.27

And I think frankly that is irresponsible to completely throw away this useful tool

所以，我认为，完全放弃这样一种有用的工具也是十分不负责任的。

需要动物实验吗？ - SpeakingMax英语口语达人

To stay in school,experts say children must consider their education useful -- and so must their parents.

VOA: special.2010.05.20

And I thought it would be useful And I thought it would be useful to have to have opportunities to work with students opportunities to work with students about the issues about the issues outside the classroom outside the classroom that might either inform or impede that might either inform or impede their development their development as scholars.

我觉得，如果有机会与学生交流,我觉得一个有用的办法,会很有益,是创造机会和学生们一起处理,与他们讨论课外的问题,课外一些可能会影响或阻碍,这些问题可能促进或者阻碍,他们作为学者的发展的问题。

普林斯顿公开课 - 人性课程节选

He realized that this "teach-in" method would be a useful way for the public to express concern about the environment to federal and state officials.

VOA: special.2010.04.21

In that way it would be useful to make a contrast between Aristotle and someone like Adam Smith the great author of The Wealth of Nations.

在这一方面，有用的对比将是,把亚里士多德,与像亚当？史密斯这样人物,放在天秤的两端。

耶鲁公开课 - 政治哲学导论课程节选

Their building can bend,move, and change to be more useful in its setting in Tokyo,Japan.

VOA: special.2010.03.31

Much like the opportunities in the word "plastic," I think it's useful to suggest that this sense of gapping a spark plug may have some relevance to our understanding of what goes on in this reading process.

就像说到“塑料“时的几种可能性“,值得一说的是，这种火花塞间隙的概念,可能与我们的阅读有关,它让我们了解到阅读过程到底是怎样的。

耶鲁公开课 - 文学理论导论课程节选

Today,we will tell how some insects might prove useful against hard-to-fight diseases.

VOA: special.2010.12.07

Because I always think it's useful to watch some videos,

因为我一直认为，看一些视频会有用，

巴西的英语老师 - SpeakingMax英语口语达人

You'll find "That's all" very useful to express what you have or to put a stop to something.

你会发现 “That's all” 是个非常有用的句型。你可以用它来给一件事画个句号。

That's all课堂 - SpeakingMax英语口语达人