| 词汇 | alkene |
| 释义 | alkene/ˈælki:n ||; ˈælkin/noun [c] any of a series of gases that contain hydrogen and carbon and that have a doublebond(= force of attraction)holding atoms together 链烯,烯烃(含氢和碳的气体,由双键将原子连在一起) |
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