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单词	Protohydra
释义	Protohydra noun Pro·​to·​hydra "+ : a genus of marine coelenterates similar to Hydra but having no tentacles Word History Etymology New Latin, from prot- + Hydra
随便看	exenteration exenterations exequatur exequaturs exequial exequies exequy exer exerce exercent exercisable exercise exercise bicycle exercise bike exercise in futility exercised exerciser exercisers exercises exercising exercitant exercitation exercitations exercitor exercitor maris

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