> David: Welcome back to CS50, and welcome now that you are officially enrolled.

>，大卫：欢迎回到CS50课程,也欢迎你们正式登记加入我们。

哈佛公开课 - 计算机科学课程节选

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