| 摘要 |
A child's drinking cup (10) has a releasable lid (14) providing a mouthpiece (16). Sucking on the latter causes air to be drawn from the valve members (27) through a channel (18), whereby to open the valves and allow liquid from the container (12) to be sucked into a space (26) and therefrom through the open mouths (24) out of the mouthpiece (16). On release of the sucking action, the valve members (27) automatically close, thereby providing a reliable seal to the cup when not in use.
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