你给予了爱什么就会得到什么。

What you put into that love is what you will receive back.

youdao

我们给予什么，就会得到什么。

What we give is what we get.

youdao

神说：“你信仰什么，就会得到什么。”

God says, "According to your faith will it be done to you".

youdao

take the derivative of this, get the velocity vector and you notice his magnitude is a constant Whichever way you do it, you can then rewrite this as v square over r.

对这个式子求一次导,就能得到速度矢量,你会发现其模长是常数,不管用什么方法,加速度也可以写成 v^2 / r

耶鲁公开课 - 基础物理课程节选