èr / liú / huà / tàn / shì / yì / zhǒng / yǒu / dú / yè / tǐ / shǐ / yòng / shí / bì / xū / bǎo / chí / tōng / fēng二硫化碳是一种有毒液体,使用时必须保持通风。Carbon disulfide is a toxic liquid, so good ventilation is essential when using it.