Read Edit View history 二氧化氮 èryǎnghuàdàn nitrogen dioxide Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 二氧化氮 · èryǎnghuàdàn · nitrogen dioxide 2026/03/04 二氧化氮 èryǎnghuàdàn nitrogen dioxide nitrogen dioxide 汽车尾气中含有大量的二氧化氮。 noun created sense Mar 4, 2026, 02:25 AM