But this is a good example of what you need to know.

这个例子很好地说明了你需要知道什么
What is it you have to know

关于这个物体
about this object that was thrown, I claim,

我们需要了解什么我要强调的
is the initial location of the object and the initial velocity.

就是这个物体的初位置和初速度
The fact that it was blue or red is not relevant,

物体是蓝色还是红色都没有关系
and if I threw a gorilla at him

如果我扔给他一只大猩猩
it doesn't matter what the color of the gorilla is, what mood it is in.

它的颜色和情绪都是不重要的
These are things we don't deal with in physics.

我们只研究物理范畴的知识
There is a tall building,

有一栋高楼
a standard physics problem.

这是个标准的物理问题
An object falls off a tall building.

一个物体从一栋高楼上落下
The object could be a person.

这个物体可能是个人