dropping

例句：

1. 3. 例句：1. The leaves are starting to drop from the trees.
   树叶开始从树上掉落。
2. 2. She dropped her phone into the toilet bowl.
   她把手机掉进了厕所的水槽里。
3. 3. The raindrops were falling gently from the sky.
   雨滴从天空中轻轻落下。