The two accounts are extremely different but they both Signal the unique position and dignity of the human being.

这两种描述是截然不同的，但是它们都,表明了人类特有的地位和尊严。

耶鲁公开课 - 旧约导论课程节选

Because it takes three units where there's only four choices at each position to have at least 20 unique combinations.

因为每个位点上仅有四种可能性,只有采用三个碱基一组,才能取得至少二十种不同的组合方式

耶鲁公开课 - 生物医学工程探索课程节选