来自《耶鲁大学开放课程：新生有机化学第7集第7集》

remember it's a negative constant --

记住是个负值
minus the curvature over the amplitude could be positive --

负曲率除以振幅可为正
that's going to be the kinetic energy;

这个值就是动能
it could be positive, it could be zero,

其可为正可为零
it could be negative, or it could be

也可为负也有可能
that we can't tell by looking at the graph.

从图中无法判断其正负
So let's look at different positions

现在考察图中的不同位置
on the graph and see what it says.

看看图像能给我们什么信息
First look at that position.

首先看那个位置
What is the kinetic energy there? Positive, negative, zero?

动能为正还是为负还是为零
Ryan, why don't you help me out?

瑞安你来说
No

我不知道