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  1. Oxford Dictionary

    Allen wrench

    • IPA[ˈalən kiː]

    英式

    • n.
      an L-shaped metal bar with a hexagonal head at each end, used to turn bolts and screws having hexagonal sockets; an Allen key.

    • noun: Allen wrench, plural noun: Allen wrenches

    • 更多解釋

    Allen wrench

    • IPA[ˈalən ˌrenCH]
    • n.
      an L-shaped metal bar with a hexagonal head at each end, used to turn bolts and screws having ...

    Oxford American Dictionary