| 单词 | crotonaldehyde | 
| 释义 | crotonaldehydenoun  cro·ton·aldehyde   ¦krōtᵊn+   : a pungent liquid aldehyde CH3CH=CHCHO obtained by dehydration of aldol and used chiefly as an intermediate in organic synthesis and as a warning agent in fuel gases; β-methyl-acrolein   | 
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