单词	tropolone
释义	tropolone noun trop·​o·​lone ˈträpəˌlōn plural -s : a crystalline unsaturated enolic ketone C7H6O2 containing the seven-membered ring of tropane and tropine see stipitatic acid, thujaplicin Word History Etymology trop- + -ol + -one First Known Use 1945, in the meaning defined above
随便看	enthrallments John o' Groat's john o' groat's house John of Austria John of Gaunt John of Lancaster John of Salisbury John of the Cross John Paul john q. john q. citizen John Q. Public John Stiles John towhit John Trot John's-wort john's-worts john-a-noakes John-a-Nokes John-a-Stiles john-a-styles John-apple John-go-to-bed-at-noon johnboat johnboats

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