There is no acceleration in the y direction, only in x direction when it starts moving, and that's why we split it.

在y方向上没有加速度，只有在x方向上移动时才有，这就是分解它的原因。

youdao

When we have not seen enough, here again it was Shouting: Look, the trees are split mouth smile pineal miles, gently tell us that autumn came.

还没等我们看够，这边又有人喊：瞧，树上的松果正裂开嘴笑哩，轻轻告诉我们秋来了。

youdao

And when we look at this, it's actually split by what's called a nodal plane, which is pointed out in light orange here on this picture, but what we just mean is that there is this whole plane that separates the two lobes where there is absolutely no electron density.

我们来看这里，实际上它被一个节面分开，在这图里用淡黄色表示，这意味着这个分开,两个叶瓣的平面上,是完全没有电子密度的。

麻省理工公开课 - 化学原理课程节选

If we could introduce a more even split between men and women when it comes to parental leave, this would eventually lead to different patterns of expectations and sharing of domestic responsibility.

CNN: Want more female execs? Sort out the household chores