Xiǎo / niǎo / shòu / dào / jīng / xià / hòu / ， / bó / rán / fēi / qǐ / ， / xiāo / shī / zài / shù / lín / zhōng / 。

小鸟受到惊吓后，勃然飞起，消失在树林中。

The bird suddenly flew up after being startled and disappeared into the woods.