Its horizontal motion didn't affect its vertical motion in any way.

它的水平运动并没有影响到我 任何方式的垂直运动。

Well, we can still talk about the ball's vertical and horizontal motion separately.

好吧，我们仍然可以谈论球的运动 垂直和水平分开。

Now we're equipped to answer all kinds of questions about the ball's horizontal or vertical motion.

我们现在有能力回答各种 关于球的水平和垂直运动的问题。