When you say, "Push the elephant," you want to push it in a particular way?

你刚才说,"推那头大象",你想用什么特别的方法来推吗

耶鲁公开课 - 基础物理课程节选

One way is to just use your common sense and realize that if you push it this way, these two guys are going to move together.

第一种方法就是你可以通过常识感觉到,如果你这样推它,这两个物体会一起运动

耶鲁公开课 - 基础物理课程节选