By looking to see not just what genes you carry but what genes are being used at particular times in your life.

这样不仅能够知道自己带有什么基因,还能知道哪些基因,在人生哪个时期发挥作用

耶鲁公开课 - 生物医学工程探索课程节选

If we think about bringing in those last two carbons, what you can see is that for every carbon, two of its hybrid orbitals are being used to bond to other carbons.

如果我们考虑引入最后两个碳原子，你会看到的是对于每个碳原子，其中的两个杂化轨道,和另外的碳原子成键。

麻省理工公开课 - 化学原理课程节选

So it lets you do a profile of not just the genes that you possess, for example, but what genes are actually being used to make proteins in the cells that surround the fluid where this was collected.

他不仅能让研究者了解,人带有哪些基因,还能知道,在收集到的体液细胞的样本中,哪些基因是合成蛋白质的

耶鲁公开课 - 生物医学工程探索课程节选

If you think about what ancient food gathering habits used to be like, you see things like this where people are out gathering food that is growing naturally, and you can think about what would-- what sort of conditions this would create and what kind of hardships it would create.

如果你想知道古代食物采集的习惯,请看这张图,人类都在野外采集自然生长的食物,你可以设想到,条件有多恶劣,生存有多艰难

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选