In large part because our government has confused us about it, but it's a confusing question to know.

虽说很大程度上,是政府把这个问题变得复杂,但这个问题本身确实值得商榷

耶鲁公开课 - 生物医学工程探索课程节选

While there are only four different bases that make up either RNA or DNA, and so the complexity of an RNA polymer is limited.

在RNA或DNA的构成中,只含四种不同的碱基,因此一个RNA分子的复杂程度是有限的

耶鲁公开课 - 生物医学工程探索课程节选