I stared down at the pan, pulling up the edge of a sandwich to check the bottom side. " I got a ride with a friend."

我低下头看着煎锅，夹起一片三明治的一角，检查朝下的那一面。“我搭一个朋友的车上学。”

When you go to the doctor, they put on their stethoscope and they, you know, very doctorly, start listening in the back, side to side, bottom.

当你去看医生时，他们戴上听诊器，你知道，很有医生的架势，他们开始在后面听，左右听，底部听。

Cover that with your second cake layer and I like to place the bottom side up to ensure a perfectly even surface.

用你的第二层蛋糕盖住它，我喜欢把底面朝上，以确保表面完美平整。

So, side 2 is the right side of the Amperian rectangle, side 3 is the bottom side, and side 4 is the left side.

因此， 边 2 是安培矩形的右侧边，边 3 是底边， 边 4 是左侧。

Now, we can substitute the equation  for absolute pressure in for the pressure on the top and bottom sides of the cube in our net  force equation.

现在，我们可以用绝对压力方程代替净力方程中立方体顶部和底部的压力。