And once again we, our ears,hear this aggregate of sound and then we say, "Oh,it's got that,that,that,that," and we extrapolate out of that information that it is this particular chord.

然后再来听到这样的声音的聚合，然后我们可以说，“哦，到了那里，那里，那里，那里”,然后我们能够推断出这就是我们所指的那个和弦。

耶鲁公开课 - 聆听音乐课程节选

The reason that 3' is important is that when you polymerize two nucleotides together and a third nucleotide, and a fourth nucleotide, when you polymerize nucleotides together they get polymerized, the phosphate of one gets linked to the 3' carbon of another.

'碳部位重要是因为,当你把两个核苷酸聚合在一起,然后再聚合第三个,第四个的时候,核苷酸在聚合时,磷酸基与另外一个戊糖的3'碳部位连接

耶鲁公开课 - 生物医学工程探索课程节选