单词	Allen screw
释义	Allen screw noun Al·​len screw ˈa-lən-  hardware : a screw with a hexagonal socket in its head that is designed to be used with an Allen wrench Word History First Known Use 1917, in the meaning defined above
随便看	reau reau cherry reauction reaudit reaudition Reaumur reaumures reaumurs reauthenticate reauthentication reauthorisation reauthorisations reauthorise reauthorises reauthorization reauthorizations reauthorize reauthorized reauthorizes reauthorizing reavailed reavailing reavails reave reaved

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