单词	acetylene series
释义	acetylene series noun : the homologous series of unsaturated aliphatic hydrocarbons CnH2n−2 of which acetylene is the lowest member compare alkyne Word History First Known Use 1861, in the meaning defined above
随便看	leaden flycatcher leadened leadener leadenest leadening leadenly leadenner leadenness leadennesses leadennest leadens leader leader head leader of the opposition leader pin leader tape leaderboard leaderboards leaderenes leaderettes leaderless leaderman leadermen leaders leadership

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