When we did the spring, we had this theory of Hooke's Law that told us something, and we built a simulation, or built some tools around that theory.

当我们写弹簧程序的时候,我们有胡克定律来告诉我们原理，然后我们建立了一个仿真模型，或者说是在这个理论基础上建立了一些工具。

麻省理工公开课 - 计算机科学及编程导论课程节选

We're here for my son's vacation, spring break from school.

我儿子放假了，春假。

洛杉矶VS圣地亚哥 - SpeakingMax英语口语达人

If you put your fingers between the plastic opening at the bottom, and here's where you gotta watch out for the spring, pull the thing apart and that's it.

如果你把手指放到,底部的缝隙中间，这里你需要小心，你剥开就会发现这个了。

哈佛公开课 - 计算机科学课程节选

Newton is not going to come and tell you what force the spring will exert when it's pulled by some amount.

牛顿不会过来告诉你,弹簧被拉伸一定量时会产生多大的力

耶鲁公开课 - 基础物理课程节选

They're two water companies, so they're Poland Spring and Coca-Cola I guess these days, sign this agreement saying that each one's going to produce half monopoly quantity and what's going to go wrong with that agreement?

有两家瓶装水公司,比如说波兰泉和可口可乐,他们签署了协议规定,每家都只生产垄断产量的一半,这个协议有什么问题吗

耶鲁公开课 - 博弈论课程节选

Then, let's look at the spring.

我们再来看看弹簧

耶鲁公开课 - 基础物理课程节选

If you connect the body to a spring, which is neither compressed nor extended, there's no force acting on it.

如果将一个弹簧连在这个物体上,弹簧既没有被压缩也没有被拉伸,也不会有力作用在它上面

耶鲁公开课 - 基础物理课程节选

It says, if you pull it to the right, so that x is positive, the spring will exert a force which is in the negative direction; that's why you have a minus sign.

就是说,如果你向右拉,x 取正值,弹簧产生的力方向为负,这就是这里用负号的原因

耶鲁公开课 - 基础物理课程节选