单词	pentacyclic
释义	pentacyclic adjective pen·​ta·​cyclic ¦pentə+ : containing five usually fused rings in the molecular structure Word History Etymology penta- + cyclic
随便看	ibe iberes iberia Iberia iberiae Iberian Iberian ibex Iberian Peninsula Iberian tortoise iberian turtle iberians iberias Iberic Iberis iberises iberisses iberite Ibero- Ibero-Romance Iberville ibex ibexes IBI Ibibio ibibios

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