clacking

例句:

• 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.
  
• She heard his footsteps clacking along the concrete pavement.
  她听到他的脚步声啪嗒啪嗒地沿水泥人行道走去.
  
• Stop clacking your pencils!
  别弄得铅笔噼啪乱响!
  
• He will sit clacking with an old woman for hours.
  来自Ld Macaulay
• There's also banjo, guitar and what sounds like clacking bones.
  来自BBC
• Is clacking away on a laptop while sprawling on bed sheets more comfortable and productive than hunching over a desk?
  来自WSJ