zé
(interj. of admiration or of disgust)
to click one's tongue; to attempt to (find an opportunity to) speak
啧啧
zé zé
to click one's tongue
人言啧啧
rén yán zé zé
everyone comments disapprovingly (idiom)
啧啧称奇
zé zé chēng qí
to click one's tongue in wonder (idiom)