咝咝声

咝咝声	sī sī shēng	hissing sound (onom.)
咝	sī	(onom.) to hiss / to whistle / to whiz / to fizz
咝	sī	(onom.) to hiss / to whistle / to whiz / to fizz
声	shēng	sound / voice / tone / noise / reputation / classifier for sounds