But because gravity makes the ball's trajectory a parabola, the air pushing against the ball changes directions as it flies.

但是因为重力使球的轨迹呈抛物线，所以当球飞行时，推动球的空气改变了方向。

But there’s one more question: How does the ball’s position change over time?

但还有一个问题：球的位置如何随时间变化？

But there's one more question: How does the ball's position change over time?

如何？ 球的位置会随着时间而改变吗？