Verb + 掉 / Subject + 掉 + 下来
The verb 掉 (diào) can also mean to fall or come down from a higher position. In this sense, it emphasizes downward movement. It frequently appears as a complement after other verbs to indicate that something has fallen away or off.
树上的苹果掉下来了。
Shù shàng de píngguǒ diào xiàlái le.
The apple fell from the tree.
杯子从桌上掉下去摔碎了。
Bēizi cóng zhuō shàng diào xiàqù shuāi suì le.
The cup fell off the table and shattered.
秋天,树叶一片片地掉下来。
Qiūtiān, shùyè yī piàn piàn de diào xiàlái.
In autumn, the leaves fall one by one.