It's not all copying the string.

它没有复制整个字符串。

哈佛公开课 - 计算机科学课程节选

It's totally synthetic, there's no micro-organism involved in making the DNA for you, You can do it very rapidly in a laboratory, and fairly inexpensively now.

完全是复制的过程,没有任何微生物参与制造DNA,你可以在实验室里迅速地进行,费用现在也相当便宜了

耶鲁公开课 - 生物医学工程探索课程节选