单词	cooper's flag
释义	cooper's flag noun variants or cooper's reed : the cattail whose long leaves are sometimes used between barrel staves to make the barrel watertight Word History Etymology cooper entry 1
随便看	RL RL and R RLO rly rm RMI rms rmt Rn RNA RNA interference RNA polymerase RNA virus rnaase rnaases RNAi rnas RNase rnases RNC rnd rng rns rnwy ro

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