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	monopolizes monopolizing monopoloid monopoly monopolylogue monopotassium monoprint monoprion monoprionid monoprionidian monopropellant monopropellants monopsonies monopsonist monopsonistic monopsonists monopsony monopsychism monoptera monopteral monopteron monopterons monopteros monopteroses monoptic

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