We go back to the spring and we want to learn something about the spring.

我们回到弹簧的问题上来,我们要学习一些关于弹簧的知识

耶鲁公开课 - 基础物理课程节选

Maybe you're talking with a friend about where you should go for spring break vacation,

假如你在跟一个朋友讨论你们该去哪里过春假。

I've already 课堂 - SpeakingMax英语口语达人

Now, we go back to the spring.

现在,回到弹簧的问题上

耶鲁公开课 - 基础物理课程节选