There's a fundamental difference in the charter and the way the government reacts to them.

许可证上也有根本性的区别,政府对其反应也有所不同

耶鲁公开课 - 金融市场课程节选

For now, just know that different kinds of cells, one of the ways they're different is that they express different proteins and the population of proteins on the surface of different cells is different.

现在,你们只要知道有不同的细胞,它们之间的一种区别,就是它们表达不同的蛋白,而不同细胞表面的蛋白种类,也是不同的

耶鲁公开课 - 生物医学工程探索课程节选

So，the point is,every object falling under gravity is given by the same formula, but there are many, many objects that can have many histories, all falling under gravity, and what's different from one object and the other object is, when was it dropped, from what height, and with what initial speed.

关键是,每一个受重力作用下落的物体,都有同样的表达式,但是各个受重力作用下落的物体,都有不同的初始条件,所以它们的区别在于,下落时刻,下落高度和初始速度

耶鲁公开课 - 基础物理课程节选