One of the first advancements researchers are working on is scanning tens of thousands of different soybean varieties, including wild relatives, to look for useful traits.

VOA: standard.2010.02.01

But the kind of exercise we did last time is a useful exercise for those of you who are Econ majors.

但是我们上节课做的练习,对经济学专业的同学是非常有用的

耶鲁公开课 - 博弈论课程节选

And you will find this pattern useful for when you are talking about something in your memory.

当你在谈论记忆中的某事时，这个句型非常有用。

remind me of 课堂 - SpeakingMax英语口语达人

There are all kinds of things that it might be very useful ; for you to know as an inhabitant of Western civilization; and the New Testament,you might find out, would rank kind of down on the list of those kinds of things.

作为西方文明的一分子,有很多有用的东西可以学;,而新约，你会发现，与这些东西相比，排名比较靠后。

耶鲁公开课 - 新约课程节选

He maintains further the titles of nobility are of value only for the benefits they confer on those of lesser rank or they're not useful at all.

对于贵族头衔,他认为只有在依据头衔划分利益时,它才具有真实的价值,否则再高的头衔也是一无是处。

耶鲁公开课 - 政治哲学导论课程节选

Why are antibodies useful for bacteria?

为什么抗体对细菌管用

耶鲁公开课 - 生物医学工程探索课程节选

The options are a very useful technology for managing risks and I think that we'll see a rapid--Over the next few decades, we'll see rapid expansion in the scope of options contracts traded on the exchanges.

期权是管理风险的,一个非常有用的技术,我认为在往后的几十年,交易市场上,我们将会看到期权合同的迅速发展

耶鲁公开课 - 金融市场课程节选

- And it's worth--; it's sort of a useful test for asking yourself -- what are the things you must value in life-- to ask, what would you choose to do if you knew you had five years, ten years, ? what have you?

而这值得;,这算是一种很有用的测试,用来问自己什么是你在生命中必须珍惜的事-,问你会怎么选择,如果你知道自己还有5年，10年，之类的时间？

耶鲁公开课 - 死亡课程节选

How many" is so useful for when you're asking a question about how many numbers there are.

当你想知道具体数量的时候，“How many”非常有用。

How many课堂 - SpeakingMax英语口语达人