如果没有阻力，这应该是个抛物线，水平速度，也应该一样。

If there were no drag, then this, of course, would be a parabola, and the horizontal velocity would always be the same.

youdao

如果没有阻力，这应该是个抛物线，水平速度，也应该一样。

If there were no drag, then this, of course, would be a parabola, and the horizontal velocity would always be the same.

youdao