Voice 2: It is your Deoxyribonucleic acid, or DNA. Some people call DNA the building blocks of life. Everyone has his or her own set of DNA. It influences every part of a person's body.
声音2：这就是脱氧核糖核酸，简称DNAK5QsAecBoTVqAc2ugtAL。有人认为DNA是构筑生命的基石aE*)G7GE1U]p。所有人都有自己的一套DNAoV!+nubBcf。它影响人们身体的各个部分kl=S3Hj]-a。
Voice 1: And it has millions of different parts to it. But there is something truly surprising about DNA. When scientists really began to look at people's DNA they discovered that people are not really that different from each other. On the outside of their bodies people look different from one another. But when you get down to it, everyone is made of the same stuff!
声音1：DNA由数百万个不同的部分组成q0i+RZ*k|HW1。但是DNA有令人极为震惊的内容_vzOdy]oK(I=O@Vj。当科学家开始研究人类DNA时，他们发现人们彼此之间并没有那么不同r7q,@CkPhbF&gFJMm。从外观来说，人们彼此长相不同,jA*opvP(_2#_。但是当你认真研究时，会发现所有人都是由相同特征构成的！
Voice 2: DNA is a very complex subject. Before nineteen fifty-three scientists did not even know what DNA really looked like! They knew that something told a person's body how to grow. But they did not know how. Scientists have been trying to understand DNA ever since they discovered it.
声音2：DNA是一个非常复杂的主题T#DKSU[aLzMn4Ut。在1953年以前，科学家甚至都不知道DNA长什么样子！他们知道有某种物质决定人体如何生长kyeb6Zfk&C)@-UZjb@4r。但是他们不知道是如何决定的Ankb@Fjtr+M,.@t5K。自从发现DNA以来，科学家一直在试图理解DNARN099a#Zd8c=^。

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