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单词	piperonyl
释义	piperonyl noun piper·​o·​nyl pīˈperənᵊl, pə̇ˈp-; ˈpipərəˌnil plural -s : the univalent radical (CH2O2)C6H3CH2 of piperonyl alcohol; 3,4-methylenedioxy-benzyl Word History Etymology International Scientific Vocabulary piperonal + -yl
随便看	ungroomed unground ungrounded ungrouped ungrown ungrudged ungrudging ungrudgingly ungual ungualer ungualest ungualler unguallest unguaranteed unguard unguarded unguardedly unguardedness unguardednesses unguarding unguards unguent unguenta unguentaria unguentaries

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