Many of these families also drank more milk, because they bought a cow with their added earnings.

VOA: special.2009.08.17

You're taking advantage of a promoter system, or a gene activation system, that this species knows about because adult animals can make milk.

我们之所以能利用这个启动子系统,或者称之为可以被这一物种识别的,基因活化系统,是因为成年动物可以泌乳

耶鲁公开课 - 生物医学工程探索课程节选

It also turns out that they're made stable in these environments like milk and mucus secretions because of this secretory chain which is wrapped around it.

同时,连接抗体还可以,使抗体在像乳汁或是粘液分泌物,这样的体内环境中保持稳定,因为分泌循环系统可以将抗体包裹在内

耶鲁公开课 - 生物医学工程探索课程节选

Of course, if you have cereal with milk, then you've got to enter the milk as well because it wasn't just the cereal that you had.

当然,如果你吃了牛奶泡谷物,你还需要输入牛奶,因为你不仅吃了谷物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选