patter

n. 急速拍打声,轻快脚步声,行话
v. 急速地念,滴答地响,发出急速轻拍声

The falling leaves pattered against the windowpanes.

落叶嗒塔地打在玻璃窗上。

They will soon be hearing the patter of tiny feet.

他们很快就会有个小宝宝了。