The movie tells the story of humans meeting tall blue creatures called Na'vi on a planet called Pandora.

VOA: special.2010.03.01

A newer version of this that works in a similar way but a different way is called RNA interference, and it turns out that this is a natural mechanism that cells have.

NA干扰是这类方法的新秀,它的原理与其大同小异,已经证实 这是细胞的自然机制

耶鲁公开课 - 生物医学工程探索课程节选

I thought they were going to and that was to protect people who might be na?ve, innocent people who only have a million dollars or only have two million dollars and don't know what they're doing from hedge funds.

我认为他们这么做,是想保护一些没有经验的投资者,他们只有100万美元,或者只有200万美元,并不清楚对冲基金的操作流程

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Viroj Na Ranong,an economist with the Thailand Development Research Institute, a policy research agency, fears that shift is under way.

VOA: standard.2009.12.23

So the repeating unit in DNA is this structure here, a nucleotide, which has three different regions.

NA的重复单位就是,核苷酸,它有三个不同的区域

耶鲁公开课 - 生物医学工程探索课程节选

In a criminal complaint filed by a Federal Bureau of Investigations agent, Captain Phillips describes Muse much differently than the na?ve, young boy his mother portrays him to be.

VOA: standard.2009.04.22

In this same way, this process of transcription which is occurring in cells throughout body all the time is made possible by a protein called RNA polymerase.

NA的合成也很类似,身体内每个细胞内,转录过程的进行都是在一种称作,RNA聚合酶的蛋白质催化下进行的

耶鲁公开课 - 生物医学工程探索课程节选

The whole structure of a DNA molecule looks like this, going back to a more cartoon version like I showed you before but adding some detail onto it now.

NA分子的全部结构都和,刚才的卡通模型上差不多,但细节更为丰富

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RNA is converted into protein by a process called translation.

NA通过一个被称作翻译的过程,来指导生产蛋白质

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That's because you have to satisfy this base pair matching in order to have hydrogen bonding in each of the struts of the ladder in order to form a stable structure.

NA双链要满足互补配对原则,以使碱基对之间,形成氢键,从而形成稳定的双链结构

耶鲁公开课 - 生物医学工程探索课程节选

Now DNA is a double helix and I've only shown you one part of the helix, right? I've shown you one upright strut and a base hanging off of it, but it forms a double helix because complementary strands of DNA strongly associate with one another and that's a very stable structure.

NA是双螺旋,我只是给你们讲了螺旋的一边,我给你们演示,一条链的支柱及碱基团,但其能构成双螺旋,是因为DNA是完全互补的两条链,彼此之间结合紧密,结构异常稳定

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