relatedness

n.关联性

If evolutionary relatedness does not determine sleep time, then what does? 所以，如果动物之间的演化关联性不是决定睡眠时间的因素，那会是什麽？

We found technological complexity is the most important factor to gain profit.When selecting product items, product relatedness is also a very important concern. 研究发现技术复杂度是决定获利的最重要因素，在选择产品开发项目时，产品关联性亦是一个重要的考量。