四氯乙烯 sì lǜ yǐ xī 🔊 tetrachloroethylene + Keep this word Meanings sì lǜ yǐ xī tetrachloroethylene Its characters 四sìfourHSK 1氯lǜchlorine (chemistry)乙yǐsecond of the ten Heavenly Stems…HSK 5烯xīalkene; -ene (suffix used in chemical names)