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	resort resort (to) resort to resorted resorted (to) resorted to resorter resorters resorting resorting (to) resorting to resorts Sancho Panza sancho pedro sanchos sancoches sancord sancta sancta simplicitas Sancti Spíritus sanctification sanctifications sanctified sanctifier sanctifiers

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