Can I have a teachnic assistance to--to All right.We'll go back here to try this.

有人能提供技术支援吗,好的,我会再尝试一遍

耶鲁公开课 - 聆听音乐课程节选

Now, we are done because now we can ask how high does it go, and you go back to your y of 1 is 15+10-5, which is what?

现在问题解决了,因为我们可以算出,最高点的高度,你回到这个式子,求出y=15+10-5,是多少

耶鲁公开课 - 基础物理课程节选