So, that means that actually as it comes down, first it's slowing down. Then it stops here, and then it reverses going back up.

这意味着当它下落的时候，首先它在减速，然后在这一点瞬间静止，接着又向上运动。

youdao

So, that means that actually as it comes down, first it's slowing down. Then it stops here, and then it reverses going back up.

这意味着当它下落的时候，首先它在减速，然后在这一点瞬间静止，接着又向上运动。

youdao