When the drops become too heavy to stay in the clouds, they fall as rain.

当水滴变得太重，不能停留在云中时，就落下来形成雨。

youdao

When the drops become too heavy to stay in the clouds, they fall as rain.

当水滴变得太重，不能停留在云中时，就落下来形成雨。

youdao