| 词汇 | dioxide | 
| 释义 | dioxide  noun [ U ]  chemistry specialized uk/daɪˈɒk.saɪd/ us/daɪˈɑːk.saɪd/  二氧化物 a chemical substance consisting of two atoms of oxygen combined with one atom of another element  carbon/sulphur dioxide 二氧化碳/硫  | 
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