单词	pentadiene
释义	pentadiene noun pen·​ta·​diene ¦pentə+ : any of several straight-chain liquid diolefins C5H8 especially : piperylene compare cyclopentadiene Word History Etymology penta- + -diene
随便看	ater-in-the-round Aterian ates Atestine ATF Atfalati atfalatis ath Athabasca Athabasca, Lake Athabascan athabascans athabaska athabaskan athabaskans athalamous athame athames Athanasian Athanasian Creed Athanasianism athanasianisms athanasies Athanasius athanor

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