单词	fenchone
释义	fenchone noun fen·​chone -ˌchōn plural -s : an oily terpenoid ketone C10H16O that is isomeric with camphor and has a camphoraceous odor, that exists in three optically different forms, occurring as the dextrorotatory form especially in fennel oil and as the levorotatory form in thuja oil, and that is used chiefly as a pine scent; 1,3,3-trimethyl-2-keto-norbornane Word History Etymology German fenchon, from fenchel fennel + -on -one
随便看	Poole pooled poolers poolhalls pooli pooling poolroom poolrooms ruana ruanas ruanda Ruanda-Urundi ruandae ruandaner ruandanest ruandanner ruandannest ruandas Ruapehu, Mount Ruashid ruashids rub rub (someone) up the wrong way rub along rub elbows

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