单词	coumarone
释义	coumarone /ˈkuːmərəʊn / noun [mass noun] Chemistry An organic compound present in coal tar, used to make thermoplastic resins for paints and varnishes. A bicyclic compound with fused benzene and furan rings; chemical formula: C8H6O. Origin Late 19th century: from coumarin + -one.
随便看	repent repentable repentance repentance seat repentance stool repentant repentantly repenter repentful repentine repenting stool repentive repentless repeople reperceive repercuss repercussion repercussive reperforator reperform reperformance reperfume reperfusion repermit repersuade

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