硝烟滚滚 Traditional 硝煙滾滾 xiāo yān gǔn gǔn 🔊 smoke billows from the raging battle + Keep this word Meanings xiāo yān gǔn gǔn 硝煙滾滾 (idiom) smoke billows from the raging battle Its characters 硝xiāosaltpeter烟yāncigarette or pipe tobaccoHSK 4滚gǔnto boilHSK 5