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That was an interesting situation where the project of one group of students was in fact a great solution for the product of another group of students.
这种情况很有趣,一组学生的项目,实际上就是另一组学生,推出的产品的解决方案。
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and then we have another, like a big group of tests at, at the end of November,
然后，我们在11月底有另一个大型考试，
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But through the course of human history, nobody has ever encountered another group of humans that did not have a language.
但在人类历史的进程中,还没有人曾经遇到过,没有语言的人类族群
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And what it's used is to convert one type of group, what's called a carboxylic acid into another type of very reactive intermediate, which is called an acid chloride.
它被用来将一类被称作羧酸的化合物，转化成另外一类活性很高的反应中间体,也就是酰氯。
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So one example would be a firm that they both earn, sorry, they both own, and another example would be two of you working as a study group on my homework assignment.
也就是说这两家公司互相赚钱,我说错了,是交叉控股,另外一个例子是两名同学,为了做作业组成了一个学习小组
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Well, a cross-sectional study would mean that you'd get a random group of the population and measure them in 1970 and then take another random group five years later and measure them, but it wouldn't be the same people necessarily, it would be different groups of people.
那么,横断面研究就是,1970年你在人群中随意选择一组人,并记录下相关数据,然后,五年后再随意选择一组人记录数据,但这不需要是同一组人,通常是不同的人
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The phosphate group of one nucleotide gets linked to the sugar group of another nucleotide and I'm going to show you that in a few minutes.
一个核苷酸上的磷酸基团,连接在另外一个核苷酸的糖基上,马上我会给你们演示
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As you may know, there's yet another organization where we could group this in units of four but for all intents and purposes-- there are a few nuances to it-- four is simply a multiplication of two.
也许你知道的,还有另外一种组织方式,我们可以四拍一组,但是不论出于什么动机或者目的,这其中的区别甚微,四拍就是两拍的简单相乘
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If there's no human nature, then there's no sense in which one group of humans by dint of their race or their sex could be better than another group.
如果不存在人性，那么一群人因种族或性别,优于另一群的人的说法,便纯属无稽之谈。
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