| 摘要 |
An improved container, comprising, a receptacle having at least one opening; and a lid adapted to releasably cover at least a portion of the receptacle opening, comprising, one or more lower leaves having one or more ports, through which at least a portion of the receptacle opening may be accessed and having a perimeter defining a plane; one or more upper leaves, which, in a closed position, covers one or more of the ports and which, in an open position, exposes at least a portion of one or more of the ports, wherein one or more of the upper leaves, when in an open position, is adapted to return automatically to a closed position by a means for rotating about an axis which is substantially perpendicular to the plane.
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