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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
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I can't tell you in a useful way what it is that your goals in life should be or whatever.
我也不能告诉你,你人生目标应该是什么
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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。
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Ornamental trees and bushes or shrubs can serve other useful purposes besides just looking good.
VOA: special.2011.04.19
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And the relationship that he put forth is that the momentum is equal to Planck's constant times nu divided by the speed of light, or it's often more useful for us to think about it in terms of wavelength.
爱因斯坦提出的关系式是,动量等于普朗克常数,乘以υ除以光速，或者用波长来表示,通常更容易让我们想明白。
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If you're going into any science that uses mathematics, chemistry, or engineering, or even economics -- you should find the contents of that useful.
如果你要进入任何要使用数学的理工科专业,比如化学,工程,甚至是经济学,你会发现书上的内容很有用
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Are there other indicators or tricks or rules of thumb that just off the top of your head come to you as useful mechanisms for doings this as well?
当然还有没有其他的,一些暗示或者说技巧,或者规则之类有用的办法呢？
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This is why a dream diary or writing up-- writing your dreams as soon as you wake up turns out to be useful.
所以梦境日记-,要在醒来后马上写,这很有帮助。
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One useful thing about separating receptors into types or families is that we found that many different receptors work by the same basic underlying mechanism.
我们将受体进行分类的一个依据,就是我们发现,很多受体有相同的作用机制
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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。
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Now these quantities were useful because you could relate them. The slope of changes, with respect to volume or temperature of the energy with respect to quantities that you understood, that you could measure.
去得到这些量,这些量很有用，而且你们已经知道了，怎么把它们相互联系起来,像这种比例形式的量，能量比上温度或体,或其它你们懂的可以测量量。
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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。
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There's another way of writing that, that's kind of useful, or equivalently, ?i solves the following.
还有一种书写方式,可以这样写,?i满足下列情况
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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。
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So, a natural product is something that is made by nature, and often natural products, whether it comes from a plant or a marine organism have some really good, useful properties. And so, one particular compound has anti-tumor properties. So, again, along this line of cancer research.
天然产物是在自然界中生成的,通常一个天然产物，不管是来自植物或者海洋生物,都有些非常好非常实用的性质，其中的一个特殊的化合物,可以治疗癌症,再一次我们又来到癌症研究上。
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If you focus on some of the minutia of a site like this, you know, it's useful to be able to jump to a particular date whether in the future or in the past.
如果你关注像这样一个网站的一些细节，你会发现，若能跳转到,不论过去还是将来的一个特定日期，那将是很有用的。
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But when you start writing programs, especially when we get to web-based stuff where you want -- to check the user's input -- is it valid, is it an email address, -- and all these different scenarios -- it's actually often useful to be able to just enumerate them or rattle them off using this switching construct instead.
但是当你看是写程序时，特别是当我们,使用基于网络的东西，你想要,检查用户的输入-,它是合法的吗？它是不是一个电子邮箱地址？,所有的这些场景-,实际上它常常是有用的，当你用枚举结构列举它们,或者用它来快速地来说出它们。
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Some may or may not be useful, but you just don't know.
有些可能有用,有些可能没用,但你们现在还不知道
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That's what makes proteins useful in transmitting or responding to signals.
它们能够传导信号,或者反馈信号
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It's not enough to understand the biology of how to create a vaccine, if you can't make enough of the vaccine or deliver it to people in ways that it's useful.
仅仅知道疫苗制造的,生物学原理是不够的,还得能生产出足够的疫苗,并在公众中广泛使用
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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。
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Here's an example where we'd like to make insulin, or having the insulin gene would be useful, but if we could take the insulin gene and make many copies of the insulin protein that would be a very useful thing.
例子就是我们人工制造胰岛素,胰岛素基因就很有用,但如果我们可以用胰岛素基因,复制很多胰岛素蛋白,这将会是非常有裨益的一件事
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And this is useful because if you're actually writing a program that's interactive or that you want to change overtime much like you would a game, hopefully, the game is not going to have the bad guys, for instance, always standing in the same place or the rocks or whatever it is falling from the sky in the same place 'cause it would very quickly become a very tedious game.
这是很有用的，因为如果,写一个交互的程序或者,希望每次游戏都不一样，我们希望，游戏中的坏人物，别老是站在同一个地方或者同一块石头上,或者从天空中同样的位置落下,因为这立刻会使游戏变得乏味。
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Because at the end of the day, if game theory is going to be useful for you in your later lives, whether it's in dating or in running a company or whatever it happens to be, you need to able to go from the story to the model.
因为到最后,如果你们在以后想要运用博弈论,不论是用在约会上还是在运作一家公司上,或者其他的什么情况,你需要从具体情况中提炼模型
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You open what we call the "text editor," the specific one we used on Wednesday was called Nano, -- which is similar to Notepad or TextEdit -- totally simple, kind of dumbed down but in a useful way so that you can just focus on writing code and not learning some new interface.
你先打开那个“文本编辑器“,就是我们周三用过的叫做Nano的编辑器，这个跟写字板和记事本差不多-,非常简单的，只是通过一种有用的方法而进行精简了的,所以你们可以把注意力集中在编写代码上,而不需要学习一些新的界面操作。
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And I don't quite remember from reading or from class how big these things are, well, it turns out -- and this is sometimes useful, later on more likely than now -- but C has a size of operator that takes an argument in parenthesis and it will tell you how much space is used to store that particular data type.
我不太记得类中的这些类型,是多大的，嗯，结果是--这个在以后比现在，可能是更有用的--不过C语言中有个sizeof的操作符,其中括号里有一个参数,它会告诉我们，要存储一个类型的数据,需要占用多大空间。
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