ㄗㄜˊㄗㄜˊㄔㄥchēngㄑㄧˊ

  1. 咂嘴作聲表示驚奇讚嘆火山爆發壯麗景觀嘖嘖稱奇。」

to click one's tongue in wonder (idiom)​, to be astonished