ze2
(interj. of admiration or of disgust); to click one's tongue; to attempt to (find an opportunity to) speak

strokes 14
radical
strokes after radical 11
啧啧 嘖嘖 ze2 ze2
to click one's tongue

啧啧称奇 嘖嘖稱奇 ze2 ze2 cheng1 qi2
to click one's tongue in wonder (idiom); to be astonished