| 释义 |
☞ carbondioxideˌcarbon diˈoxidenoun [u] (symbol co₂) a gas that has no colour or smell that people and animals breathe out of their lungs 二氧化碳 carbon di·ox·ide /ˏkɑrbən daɪ`ɑksaɪd; ˌkɑːbən daɪˈɒksaɪd/n [u]the gas produced when animals breathe out or when carbon is burned in air 二氧化碳 |