dioxideWiktionary 原文中文来自 ECDICTn.二氧化物构词拆分di-前缀Two. · Double, twice the quantity.+oxide词根/词干词源说明From di- + oxide.释义（英文）名词 Noun(chemistry) Any oxide containing two oxygen atoms in each molecule.词族派生词（34）diazoxidethiazidecalcium dioxidecarbon dioxide snowpentacarbon dioxidetetracarbon dioxidetricarbon dioxideamericium dioxideberkelium dioxidecarbon dioxide