嘶嘶声

tā shuō chū yī lián chuàn de gū lu hé sī sī shēng

他说出一连串的咕噜和嘶嘶声。

He spoke in a series of grunts and hisses.

tīng dào méi qì de sī sī shēng tā chōng jin lai bǎ tā guān diào

听到煤气的嘶嘶声，他冲进来把它关掉。

Hearing the hiss of gas, he rushed in and turned it off.