We are talking about a society,therefore, the anthropologists have come up with, which I think is a useful distinction.

因此,我们所说的这个社会是一个...,人类学家已经提出了一种区分的方法,我认为很有用

耶鲁公开课 - 古希腊历史简介课程节选

And it's a useful pattern when you want to express that your feelings have been hurt or that you're not liking something,

当你想表达你在情感上受到了伤害或者不喜欢某件事的时候，这是个很有用的句型。

I get so upset 课堂 - SpeakingMax英语口语达人

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 it's actually critically important to get used to things because it's a useful adaptive mechanism to keep track on new events and objects.

而习惯化实际上也是至关重要的,因为这是一种非常有用的适应机制,可以让你注意到新鲜事物。

耶鲁公开课 - 心理学导论课程节选

Speed of response, right, so I actually do tend to respond to some people's emails more quickly than others and that in fact might be a useful indicator.

回复的速度，是的，我可能对某些人的邮件,回复的速度更快一些,而事实上它可能是个有益的暗示。

哈佛公开课 - 计算机科学课程节选

This was done by Shimomura that was kind of the first step in this process of having it become such a useful tool.

这个工作是由Shimomura完成的,这是它成为一个有用的,工具的过程中的第一步。

麻省理工公开课 - 化学原理课程节选

I agree is a useful pattern for nodding your head with someone for coming to a similar place.

当你对别人的想法点头称是时，I agree 是一个非常有用的句型。

I agree课堂 - SpeakingMax英语口语达人

So again, if you do a calculation where you're close enough to the ideal gas and you need to design your, if you have an engineer designing something that's got a bunch of gases around, this is a useful thing to use.

要研究近似理想气体的表现时,这个方程非常有用,下面再来看一个，对我们来说最有意思的,实际气体状态方程：,范德瓦尔斯方程。

麻省理工公开课 - 热力学与动力学课程节选

I think for the moment it should be plain to you that this is a good way of understanding what the difference between a useful preconception and a useless preconception brought to bear on an interpretative act might consist in.

我想大家现在都能够,从这个例子中明白,解读中有益先见,和无益先见,之间的区别了。

耶鲁公开课 - 文学理论导论课程节选

A fearful alchemy that's a useful definition of slavery.

可怕的炼金术,那是奴隶制的一个有建设性的定义

耶鲁公开课 - 美国内战与重建课程节选

Newton says F = ma, so to make it a useful result of this problem, we know the mass of this guy.

牛顿指出 F = ma,这对于解决这个问题很有用,我们知道这个物体的质量

耶鲁公开课 - 基础物理课程节选

I like" is a useful pattern for firming that yes, you want to do something.

I like” 是一个很有用的句型，它可以用来强调你想要做的事情。

I like课堂 - SpeakingMax英语口语达人

So if you can make 100 tons of the drug but it costs $100,000 a gram that might not be a useful drug because nobody could afford to use it.

虽然你能制造一百吨药,但每克药得十万美元,这药就没什么用,因为没人能用得起它

耶鲁公开课 - 生物医学工程探索课程节选

So, Hobbes clearly believes or thinks that this will be a useful book for a sovereign to read and hoping it will gain the ear of a sympathetic sovereign or potential sovereign.

很明显，霍布斯认为,这对君王将是本很有用的书,并真心希望它能得到一些富有同情心的君王,或是即将接任的君王的欣赏。

耶鲁公开课 - 政治哲学导论课程节选

- 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

But notice what this does. The first thing it does is, it says, let's check and make sure x is greater than or equal to 0. If it isn't, notice what's going to happen. None of that block is going to get executed, and it's going to come down here and print out a useful piece of information, which says, hey, you gave me a negative number. I don't know how to do this.

做的是和以前一样的事情,但是注释它做了什么，第一件做的事情就是,程序说，要去检查并且确信x是大于等于0的，如果不是的话，请注意会发生什么,下面的代码都不会被执行,程序会到这里来然后显示一些有用的信息,信息会说，嘿，你给了我一个负数,我不知道该怎么弄这个了。

麻省理工公开课 - 计算机科学及编程导论课程节选