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	Phoronidea phoronideae phoronideas phoronids Phoronis phoronomy Phororhacidae Phororhacos phorozooid phorrhoeae phorrhoeas phos radiationless radiations radiative radiatively radiator radiators radiatory radical radical axis radical cadence radical center radical chic radical empiricism

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