v.发出咔嗒声；使咔嗒咔嗒地响

n.咔嗒声

The old woman will clack for a long time when she meets her neighbours. 这位老太婆遇到邻居时总要唠叨半天。

I heard the typewriter clacking in the next office. 我听见隔壁办公室中打字机发出嗒嗒的声音。

All I could hear was the steady clacking of a solitary typewriter. 我所能听到的一切是一部孤零零的打字机不断发出的噼啪声。

I heard the clack of her heels on the sidewalk. 我听到她的鞋后跟在人行道上霹哩啪啦响的声音。