二氧化铅 èryǎnghuàqiān lead dioxide Definitions Defs Origin Strokes Stroke Words Sentences Sents 二 èr numeral two the number two; 2氧化 yǎnghuà noun oxidize; oxidation to combine with oxygen; the chemical process of losing electrons (as in rusting or combustion)铅 鉛 qiān noun lead lead (chemical element, Pb)
