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单词	polycyclic
释义	pol·y·cyc·lic (pŏl′ĭ-sĭklĭk, -sīklĭk) adj. Having two or more atomic rings in a molecule.
随便看	rearward rearward rearwards rear-wheel drive reason reasonability reasonable reasonableness reasonably reasoner reasoning reassemble reassign reassignment reassurance reassure reassuringly reata reata Reaumur reave Reb Reb REB rebar

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